Hardware videos for simracing is such a niche, thanks so much for all your work putting together these benchmark videos, they're really helpful for choosing the right parts for a simracing PC 👍👍👍
I'm kinda geekin' out here. Great charts, great descriptions of the data and what to look for. Thank you for all the hard work this represents. Very usefull for our small but passionate VR sim-racing community.
@@BenchmarkOdysseys It is very useful indeed. How come that I still have stutters in VR in corners with a 12700k/Rtx 4090 with everything set to low - no mirrors (only virtual 90 degrees FOV)? Any suggestions where to look in order to fix this? Do you have zero stutters in VR at all at low/mid settings without mirrors
@@BeachClub_1 I'm glad it's useful :) Your question is difficult to answer because there are so many things that can contribute to your problem. It's critical that you find a consistent way to 'test' and identify those stutters. Then go through and check all of your hardware assumptions, then software configuration, always referencing back to that test and if the fix worked. If you'd like help doing that, you can contact me through my website :)
This is one of the better series I've seen...probably because it is what I'm interested in, but as someone who's been racing in VR since the first gen Oculus stuff I actually learned some stuff. What is funny is that I just "upgraded" my 7900x to a 7800x3D and it uncorked my RTX4090. Don't get me wrong, it was a strong performing machine, but the 3D v-cache even at lower clocks and less cores is a beast. Funny is that I installed it and first thing I did was run some 3D benchmarks just to make sure that temps and clocks were fine and I was kind of worried because there was literally no difference in performance....I mean a few frames here and there. Fired up some racing games in VR and it was night and day. The other unexpected change is power draw...it sips power which means less heat which we all know the benefits with modern hardware and clocks and stuff with heat.
Yep the 3D v-cache is just amazing in the value it adds. The other aspect to consider with the 7800X3D vs the 7900X - while yes the 7900X has 4 more cores, they're distributed across two CCD's, each having 6 cores. Any time a game uses more than one CCD there's a rather substantial latency penalty when they have to communicate between each other across the infinity fabric. I've never messed with the 7900X so I don't know how iRacing schedules its threads across that chip, but if they're smart they kept it to the first CCD, in which case you've actually gone from effectively having 6 cores available to the game with no vcache to 8 cores with vcache. I'm rocking the 7800X3D and loving it for my Pimax 5K Super. Also, if your motherboard has an external clock generator, there's actually support on AM5 for a little bit of overclocking of the X3D chips via bclk increases. If you're interested in that, checkout the youtube channel "skatterbencher" for his overclocks of the 7800X3D
👍👍👍Superb video! PCs have been my hobby for over 30 years but I had never seen such awesome FPS analogues in my entire life. I always play with Vsync and 100 or 120 FPS. Now I can see which CPU always manages it.👍👍👍
Wow, how have i not discovered this? Fantastic info for us iracing VR tragics. I just pulled the trigger on my first AMD cpu (9800x3d) off the back of this. I have been with intel since the pentium days but I was burnt with the 14900k quite literally with two RMAs! Keep up the good work!
This is some excellent VR testing. I haven't seen anything else like this from a lot of hardware reviewers or VR reviewers. Have you ever thought about expanding into flight simulators like DCS and MSFS as well? I think that would of great interest to those communities.
Thanks friend :) Yes, I totally want to expand into flight sim. I'm intimidated because there's a lot I don't know about those simulators, but I'd like to produce something of value for those communities.
Thanks for the video. I'm planning to upgrade my cpu/mobo/ram and this video helped immensely. Most detailed vr benchmarks i have seen for iracing so far. Great work!!!
Awesome data I'm currently on 5800x3d but fomo'd and ordered a 9800x3d without really knowing how much difference it will make but now I can see it will make a huge improvement for VR! Your testing is cutting edge, pretty much every other YT channel even the likes of Gamer Nexus use 1080p averages and it's just not representative of what people use these chips for. Looking forward to your 9800x3d tests :)
Wow man this is awesome. The data geek in me is nerding out hard on this one LOL. Definitely earned yourself a sub. One thing I'd be curious to see is your results with a 7950X3D compared to the 7800X3D. 7950X3D clocks a bit higher so it can perform slightly better IF Windows schedules things properly (which is not always a given). It'd be curious to see how the two compare. Like so many have said, it's kinda ridiculous that technically the fastest gaming CPU is a 7950X3D with the second CCD disabled lol
Thank you for doing these types of benchmarks. My choice was for the 7800xt gpu because its more on the affordable side of things. I hope it wins😎 peace✌️
Considering they are all AM4 the difference between the 2700, 5600 and 5800X3D is kind of remarkable - X3D jump is so large. AMD really nailed support for that generation of socket. Currently I run a Ryzen 3600 with an RTX 3080 on a 60" 4K display and my next planned upgrade is to the 5800X3D.
very cool video! You could think about adding a graph with the cumulative curves, it would be possible to see how many % of frames stay below a certain frame time - could be interesting
Just bought a 5800x3d because I already have AM4 PC. Had a panic when I saw these numbers, but reassured myself when I looked at the cost of am5 mobo and ram. I am still on a 2080ti so it works for me for now and is balanced. For a new build with a 4070, AM5 7800x3d is no brainer however.
Congrats on the upgrade! 5800X3D is great processor and is still the best bang-for-buck with new builds because of the wide selection of inexpensive mobo and DDR4 memory. Enjoy that 3D V-Cache!
Great stuff, that 5800X3D is a great chip. It's possible your 2080 ti is actually holding back the CPU. If you're running VR I'd load up fpsVR and see how your CPU and GPU frametimes compare.
Pretty awesome. Appreciate the work! Upgraded from a 5800x3d and 3090 to 4080 Super and 7800x3d and have been trying to dial in settings for my Q3, and it’s a pain. I want to run 120 Hz, but it just might not be feasible, but I’ll see what I can manage. Thanks again!
@@BenchmarkOdysseys Thanks for your reply! Just want to know if the ranking of the CPUs is approximately similar not each individual "score". (OpenXR-toolkit helped me a lot with ACC in VR)
This is literally what I was hopping to find with all the nonsense mainstream reviewers for the 9800x3D. They basically gave us numbers that nobody cares about. Most of us looking to upgrade are not concerned getting 250 to 300 FPS in 720p and 1080p modes we are wondering if the upgrade from 2 generations ago makes sense and it will make our gameplay smoother in high demanding sims. Thank you for all the work you've done. I'm gonna extrapolate from this and conclude that going from 5800x3D to 9800x3D makes sense if you are thinking of racing with rain and high car count races. Now, I usually use AMS2 and maybe rFactor2, do you know if your results still apply.
One small thing I’d suggest is also looking into the “car data” processing. Eg: back in the 2010s before overlays were popular we would use the car data setting to control how many cars were being processed by iRacing. However, overlays require 63 cars to be accurate. It’s why I think iRacing should move to a race data api to offload that processing from the base PC
This should prevent a lot of the CPU destroying GPU frame time. The only track I think that NEEDS more than 25ish cars is Daytona and Tally in NASCAR, which is easier to process than IMSA anyway
This video popped up at the perfect time. I’m currently on a r5 5600x with a 4080. Been struggling with the cpu for sometime now and the game took a shit on me during the sec lap of 12hr Sebring. I’m now upgrading to the 7800x3d.
Cheer mate, glad I could help! I think the 5800X3D would be a good and simple upgrade if you don't want to do the full system. But yeah, 7800X3D is the best out there right now.
G2 has a higher pixel count than Valve Index, and I deliberately kept the resolution low on the Index to avoid the GPU holding up FPS. If you ran this resolution with your G2, it would look very poor! Also, there have been updates to iRacing since this video which have slightly decreased performance. So there's a bigger impact to FPS today for these settings, than there was 7 months ago. But your 13600kf is a good CPU, and if you haven't already, I would explore tuning it for extra performance. Changing the voltages and increasing the clocks. You can deploy a similar strategy with 4070ti.
Amazing data. Can you make a tutorial on how to measure it ourselfs? I'm curious, running a decapped 4790k and a 3080 in a custom waterloop i want to see if i really need to switch :D
Cheers mate. fpsVR can be downloaded from Steam store. It will not function properly with Quest 2 or 3 or any HMD that encodes the video stream for wireless or USB transfer.
Incredible job. Those benchmarks are so insightful. Thank you. Zandvoort with mirrors does not render 100% on time on my 7800x3d I don’t know what’s different my settings are lower? Cannot run that tool I think am not running IRacing through steam.
Thanks my dude :) I think the Valve Index runs more efficiently than most other headsets and software packages. But even when using the same replay file, if I change to a different GT4 cockpit, I will see different FPS results. Such is the fickle nature of iRacing. So your system may run the benchmark I made smoothly, but your real-time sim experiences at Zandvoort may be more intense than what I've tested.
Just upgraded off the back of your benchmarks, I have a 7800x3d and a 3080ti do you have any advice setting up the 7800x3d and ram as I'm having terrible stuttering even though fps is solid 90fps in vr and 100+ on monitor.
Oh no! Have you posted in the iRacing forums yet? It's easier to converse there, share settings, and get input from others who may have resolved similar issues. Recently I saw someone Disable "USB selective suspend setting" under Advanced Power settings to fix VR frame drops.
@christophersimmons4276 what RAM are you running? If they have Hynix chips on them then there's actually a decent amount of tweaking you can do to tighten up the timings quite a bit.
Great work. This kind of work takes time and dedication. Kudos. Is there anything to be said for the 7900X3D when it comes to the torture test? Would the extra 4 Cores help in your opinion?
Thank you :) I have not personally tested the 7900X3D or 7950X3D, however, I have read up on the design of those chips and results reported by others in traditional 2D gaming. Dan Suzuki showed some great results with his 7950X3D with iRacing and triple screens. But iRacing generally demands a lot from just 2 cores, and the rest cores rarely go above 20% utilization during my testing.
The main problem you'd run into with a 7900X3D or 7950X3D is only one of their two CCDs have the vcache, and there's a rather substantial latency penalty when any data has to cross the infinity fabric from one CCD to the other, so effectively when you're gaming the game needs to be restricted to just one CCD (vcache for games that benefit from it, or the other higher clock speed CCD for games that don't). I know at one point AMD had a prototype dual CCD chip where both of them had vcache but it never made it out as a production product and my guess is probably for that exact reason - even if both CCD's have vcache, a game using both CCD's would still require them to communicate with each other over the fabric and incur the massive latency penalty (which vcache is meant to minimize in the first place). And since the 7900 is a dual 6 core CCD chip, you only get 6 cores with vcache so to me that CPU doesn't make much sense. At least with the 7950X3D you're getting one 8 core vcache CCD (and slightly higher clocks than the 7800X3D gets) and one without. In theory the second CCD can be used by other background processes, leaving your vcache CCD dedicated to iRacing, which is beneficial so long as Windows schedules things properly (which unfortunately it doesn't always do).
Thanks my dude. Amazing to see the support gather so quickly :) The results for the poll came in pretty clearly: +50% voted for the 7900 XTX. So that's the card I'm working with now!
Great video ! I was wondering what would you suggest for settings on a 5800 X3d with 4090. I notice that GPU is only utilized by 60% and FPS is just around 110 FPS on full grid in Daytona
Thank you :) iRacing is super inefficient when there's a bunch of cars very closely packed together. That's one of the reasons why Zandvoort and Daytona are the most demanding scenarios I tested in this video. That's why people often suffer FPS drops on grid and first lap. When the herd thins out a bit, it's much easier on the CPU.
I love your work here with vr and sim racing. One thing I’d like to bring up is bit memory bus size on gpus. The 4080 has 256 (same with 3070 ti) how do you think the cpu would be affected if you used a 3080/3090ti/4090 for its 384 bit memory bus size? When I was using my 3070 with 5800xt I was getting better graphics and fps when I balanced out the graphics and frame rate. When it was low at 72 and low settings my cpu was actually under more load and stuttering. When I bumped to 90 and mid range graphics my cpu usage went down (and looks better) very interesting to me. Hope you find this.
I'm curious, where do you think a R9 3900X would fall in this mix? My hope is somewhere around the 5600, otherwise I'm gonna need to upgrade sooner than I thought
3900X was amazing for it's time (12c/24t in 2019!) but when it comes to simulation, I suspect performance is less than Intel 10600K. The best chips for gaming/sims on AM4 are 5700X3D or 5800X3D.
Yes, I am working on the VR video with 7900 XTX. The preliminary results do not look good for Radeon. I'm also experiencing a latency issue with Radeon, but I am unable to measure it. I recommend sticking to Nvidia for VR.
Very Nice Video, Im currently in the market for upgraded slowly and my I7-9700k is showing its age not only on Iracing In vr with my reverb g2 but in newer open world games like Grayzone, Unfortunately by the time im looking at this it seems the 7800x3d has jumped in price and is hard to get... Hopefully i can pull through and get my hands on it, but would be nice to see how those other cpu's perform on some turned down settings like crowds and foliage
Thank you :) Yes, it appears like AMD is restricting supply to force new prices on potential customers. It is a risky strategy with Intel launching it's new platform in a couple weeks. I have yet to revisit GPU/CPU benchmarking with VR because of the difficulty in producing informative results. It seems like the most desirable question becomes: Is VR possible on a given CPU or GPU for the testing scenario, and if so, how much were the graphics settings and resolution reduced? To embark on that approach, I would need a robust method to track performance gains with each subsequent quality change. Then there's the assumption that what worked for 9700K would also work with say Ryzen 5600. Given the differences in architectures and motherboard design, such assumptions could be erroneous. Challenging, but I'm working on it!
@@BenchmarkOdysseys maybe it’s just me, there’s certain things I’ve personally turned down that aren’t deal breakers for Iracing, and there’s others I’d like to have back since the rain update which would be in car mirrors as that adds back to the immersion, regardless of my CPU is on the older side and the reason I mentioned itd be nice to see how those CPU’s performs with certain things down is because CPU’s like the Ryzen 7 5700x are still obtainable and very well priced. However that being said you clearly demonstrated that 7800x3D trumps all so far. I do understand it’s a lot of work, myself I really appreciate this video because it was very informative :)
@@Off_The_Rail I use replays because they produce the same computational demand on each CPU (like giving the same math test to a group of students). iRacing is specifically sensitive to how many cars are visible, and how close those cars are to your driving FOV. If I did each benchmark run as an AI race, that would be dynamic and different from run to run. Then the results from each CPU cannot be compared to each other because the +/- variation in performance would be greater than 10%. Note, head position and movement does not seem to matter with VR (at the time of this testing). Looking straight ahead, or tracking each apex, or wobbling my head around... all those produce almost identical frametime charts.
Great video mate. Any chance u can share somewhere, your exact settings for Nvidia, open xr and IR renderer? btw. turning off hyper threading on Intel improves performance in IR
Ty! The iRacing settings are in the video, and I decided not not change anything else in the ini files. OpenXR is as described as well (FRR Performance/Wide). For NVCP, I've failed at measuring performance differences between the settings in there.. I think those are best to be tweaked on a per-system basis to resolve issues, rather than unlock performance.
Great video man! I’ve been trying to understand all this and your videos were the best, I am completely new into PCs, I just got 2 weeks ago what I was advice it was a powerful enough PC just because I wanted to race iRacing at maximums graphics, but I think I can’t, I have an Asus Strix RTX 4080super, i9 14900 and the Quest 3, should I be able to play iRacing at the best or not? I really don’t know yet, I’m to new into this, and watching a lot of UA-cam videos everybody is saying to turn off dynamic objects, so what kind of PC do we really need to be able to play iRacing with all the maximum graphics settings?? Sorry any mistake, English isn’t my first language. Regards!
Thanks dude, glad to hear my videos were helpful. And welcome to the PC community! I benchmark at nearly max graphics because I want to stress the CPU and GPU as much as possible. Then I show the performance differences between each model. The 'real goal' with simulators is to tune the graphics and your hardware configuration so they run as smooth as possible. Your Intel i9-14900 and 4080S with Quest 3 are top-end components (congrats ;) and I wish it was super quick and easy to set them up perfectly. But PC sim racing is not plug-n-play, which you're definitely realizing now! You can confidently pursue a smooth VR experience because your PC is very powerful. It's just a matter of discovering the best combination of settings, and takes time (trial and error) and patience (write down your learnings). Unfortunately I cannot provide direct, technical assistance to you at this moment. I recommend you back reduce the iRacing graphics (for example, 16xAF and 4xAA, only 2 mirrors, and render cars 20 and 8) and Quest 3 (1.2x resolution and bitrate 500) or lower until it is smooth. Then gradually increase the settings until your VR experience isn't smooth. The official iRacing forums has a dedicated VR page, and that's a great place to research and ask for direct help!
@@BenchmarkOdysseys bro, thank you so much for your prompt reply, I will definitely try this and I will check the iRacing forums! I wish it was plug and play too hahaha still a long road to learn about the game and the PC world, thanks once again my friend, you got a new subscriber
Wish I saw this when I built my SIM PC for Quest 3 at the beginning of this year... I made a mistake and paired 4070 Super with 7600, which is a good combo for everything BUT iRacing (my primary use case) 😢Saved money on X3D part when I shouldn't have. Could you please test 9000X3D CPU as soon as it comes out in VR to see if it's able to get all of those frames on time @120fps in all scenarios? Also, do you think SSDs make any difference to iRacing load time/performance? I have 32GB RAM and mid tier M.2 SSD but see Paging bar in IR hovering in 50% yellow quite often
Honestly, 7600 is a great CPU. Sometimes I forget to put the 7800X3D back in when I do my league races, and I never notice the difference. With VR you want to tune your resolution/graphics with lots of headroom, even with the 7800X3D, and usually that's still within the 7600 capabilities.
@@BenchmarkOdysseys yes, but 120 fps is out of reach for 7600. Especially after recent iRacing updates frames dropped by like 30 fps with equivalent settings. Not sure why, but probably because now they run more car-diverse splits. I had to turn off all mirrors and drive only with the virtual one to keep the same frame rate. Settings are also not maxed out, resolution wise it’s at 1.2 oversampling I think. And even with this I can only target 90 fps without jitters. Would be cool to get to 120 that this headset is capable of. Fingers crossed for 9000x3d
I'm curious to see if the results are any different with minor overclocking. For me and my old 9700K, the difference in end performance from stock clocks to 5.2G is significant.
@@BenchmarkOdysseys Yea, I'm pushing it hard with voltage. 5.0 is a more realistic goal if you want the chip to last. I figure I need to upgrade already so killing it in a couple years isn't a big deal.
i have a 7800x3d and struggling tweaking like crazy to make the 3080 work on a quest 3, in the quality i want it. i reached the point where id say its close to a pymax, but now im stuck on 60 fps. i override the resolution with OpenXR toolkit and finnaly get the sharpness i wanted, but i guess my 3080 is not able to handle it quite well. Since i got the quest 3 its been a journey of hate, joy and pure dedication to get the quality i want. im close to where i want it , but now im hardware bottlenecked lul. never ending story. i first thought my cpu is bottlenecked, since its only dipping around 30 % all the time. but the frametime and headroom from the gpu are all over the place, so my conclusion is im gpu bottlenecked. hopefully the 4080 fills that hole
Yes, 4080S will offer significant bump in performance compared to 3080. There are still inefficiencies within iRacing that cannot be resolved with hardware. So don't expect to achieve flawless performance with the upgrade.
It’s just crazy how the performance suffers in a night race despite looking quite outdated compared to other sims. I hope that’s something they can address in the future (both visuals and performance) @Benchmark Odysseys: Any idea how the resolution affects the CPU load? I’m pretty sure we’ll soon see some Vision Pro competitors getting announced with high resolution Displays.
How do you find the visual compared to a monitor on the index with the graphic settings you run ? I been on VR for awhile now with a quest 1 as much as I do love it and I have no plans going back to a monitor it really is like playing a ps2 game at times lol.
Heh, yeah I got into VR racing with an Oculus VC1 and that was barely above PS1! Index is ok, but the screen door effect is still present. It's about on par with a 1080p monitor, or maybe a bit less. If I were buying a new headset now in 2024, I'd go with the Quest 3. Sure it has a few shortcomings, but the price is great for what ya get.
@@BenchmarkOdysseys I will need a pc upgrade first lol but yeah quest 3 seems pretty good unless you want to spend 1000-2000k on a headset. thanks for the info and the videos
do you restrict pre rendered frames for VR to decrease latency? And can you recommend some settings that are cpu hungry and recommended to disable / enable?
I was unable to showcase a difference when adjusting Nvidia Control Panel VR Pre-Render Frames (1 to 4). Perhaps my configuration of hardware and resolution wasn't enough to trigger the impact of increasing it from the default (1). So your mileage may vary. Cars and objects (LOD values), number of cockpit mirrors, and overall resolution have the biggest impact on CPU.
I am struggling with iracing with vr on current build and have ordered a 4070 super and a 7800x3d but just realized my tufx470 gaming motherboard is an am4. Now I’m in a predicament, do I send back the cpu and go for the 5800x3d or do I upgrade the motherboard as well? Suggestions?
Oh no! 5800X3D puts up great results and will pair well with the 4070S, and it will let you put off a full system upgrade. (You'd also need DDR5 memory for 7800X3D.)
Yeah found that out too after posting this, I was leaning towards new mobo but then it just keeps going, ddr5, possible different cooler, may as well upgrade storage too at that point….it just keeps going. Was basically looking at full rebuild. I thank you for replying and saving me a bunch of money 🤣
My CPU (5700x3d) is maxed out even when lowering settings to race. I get huge drops from 90 to under 50 in the rain or the NiS series. Would the upgrade be worth it to go to the 5800x3d? Also running a 2070 super, could that be causing issues? Cant afford to build a AM5 setup yet (I’ll end up spending a lot, pay once, cry once) so looking for CPU or GPU upgrades.
FPS drops are specific with rain? Try resetting your iRacing graphics with the auto-config option. Then make sure you disable SSR (advanced puddle shadows).
@@BenchmarkOdysseys yes sir from the rain, certain tracks are worse but I’m sure that is the track itself. Running the auto config weirdly makes it worse. I’ve put my oculus software to 72hrz because I’d rather lower frames and better quality than vice versa, it runs better there than at 90 and was able to up graphics on other tracks. Just more information, I run oculus for races that aren’t rain and OpenXR for the rain and more taxing tracks.
I'm having a problem and don't know why this happens, do you have any idea? My 7800x3D has timings of 10.x-11.1 running iracing VR with OpenXR with a Pico3 Neo 3 Link (Displayport Connection) I don't have any background tasks running or anything. CPU utilization ~25% but the frame times are that high, also, in a solo offline practice at bathurst, for example.
It's normal for many VR users to see the R meter locked at a CPU frametime with OpenXR. It should be near the Hz you selected for your VR HMD. This is just a hiccup betwee iRacing using the OpenXR renderer and your VR software. The utilization being reported is an average for all cores, and doesn't show the normal CPU bottleneck with iRacing maxing out 1 or 2 cores.
thanks for the video :) Do you know a way to get rid of this horrible shimmering of the 3d trees? Find this very distracting in vr. I think i see the same shimmer in your video too...
Cheers :) Honestly, no I don't know how to reduce the shimmering. You can play around with different Sharpening, CAS, and AA effects but I see the same effect in other simulators like ACC. Personally, I turned off SpeedTrees and 3D Foliage for VR. But with repeat exposure it's possible to learn to ignore the weird rendering.
@@BenchmarkOdysseys The 3d trees from AMS2 in bathrust dont shimmer in VR...But it think they are made different. Looks like the leafs on 3D trees in AMS2 are made of alpha textures and in iracing are real polygons. Had the same problem in original Assetto Corsa with the 3D tree mods.
Thanks :) The reduced boost cock of 5700X3D (4.1Ghz compared to 4.5Ghz on 5800X3D) is a significant. It's 9% reduction in clock speed, but the 5800X3D costs 70% more.
How much vram usage you have. Is 12gb bottleneck for vr? My rig with 5800x and 4070ti is good playble. But i feel is on grain, i wish little bit more smoothnes and maybe 1-2 klicks more graphics
Even with the 7900 XTX and it's 24GB of VRAM, I've yet to encounter a 'normal' situation where it consumes more than 12GB with iRacing. Abnormal situation would be like 24hr IMSA race, starting grid with +50 car field. iRacing won't even allocate (within the ini file) more than 16GB to the 7900 XTX when I run the automatic hardware config. So yeah, 12GB VRAM is totally fine.
@@BenchmarkOdysseys iracing freezes and stutters a lot. I have everything set exactly the way you do and while racing, I get the entire game to essentially freeze for a few seconds, I still hear audio, but the screen freezes and I can’t control anything. Then a few seconds later the screen starts again and I can control things again. It makes racing impossible. Not sure why this is happening?
@@skltr21Damn, yes, I've heard of others having issues like this. It's likely something with your hardware/software configuration isn't playing nice with iRacing. I reformat and reconfigure my Intel and AMD platforms all the time, therefore, that's my knee-jerk recommendation. It's easier to start fresh and evaluate every change or addition, rather than working backwards with all the changes and assumptions you've already made with the current install. Is the problem reproducible in an iRacing replay? Or only occurs in live races?
@@skltr21 Gotcha. Unfortunately, that doesn't mean it was set up correctly. I helped a client who bought a new, high-end computer with 64GB of memory. But the builder used 2 kits of 2x16GB, which is a no-no.
I currently have a 7700k and 3080 (and do iracing in vr with a g2). Plan to upgrade to a 13700k. 3 questions: 1. Should I also upgrade from a 3080 to a 4080 super? 2. Is it fine if I build it in an itx case, or would that severely hurt performance from higher temps? Looks like the x3d might be better suited for an itx case 3. Looks like the x3d is slightly better than the 13700k but I heard it’s common to have headaches and issues with it. Which CPU do you recommend for the most streamlined performance?
Quick answers for ya: (1) You need a CPU upgrade first. (2) Lots of compromise on ITX, perhaps consider mATX. (3) I've never heard of headaches associated with X3D. Flip me an email if you'd like to go into more detail on build options: benchmarkodysseys@gmail.com
Hello :) fpsVR is the tool to use. It's been recently updated to present 'summary' info within the headset after you end a session, or you can manually reset it without have to exit the sim. So you can do testing on the track, then RTG and go to graphics options to make changes, and then head back onto the track. It's very useful!
SteamVR will natively use OpenXr by default, you can see that in the advanced settings through SteamVR menu. iRacing supports OpenVr because it came out first, but how effective that protocol is with your headset depends on your HMD software. Keep in mind it's also a totally different rendererDX11.ini file so your graphics/replay settings are different.
Increasing render resolution shifts the computation burden to the GPU. That's why I tested at lower resolution, to avoid a GPU bottleneck. Most reviewers of CPUs for pancake gaming will use 1080p to showcase the differences. Benchmarking at 4K usually isn't insightful (techpowerup always does that, check their CPU reviews). But VR is more complicated than monitor gaming. So it would be interesting to know if CPUs do perform similar when bound to GPU performance.
@@BenchmarkOdysseys valve index have the lowest resolution look very bad i hade it and returned it after few hours of use i have now psvr 2 for my ps5 so i was wondering what kind of gpu should i get dont want to spend to much either is there any gpu around 5-600 that can make it run flawlessly? without sacrifice resolution and fps to much
@@rinkumultani6515 Yes I agree, Valve Index does feel 'dated' now. Mine is very dependable, however, and always works even when Quest 3 lets me down. "Without sacrifice" and "flawless" are not reasonable goals with VR racing, especially with iRacing. For example, I have helped multiple users with RTX 4090, and compromises in settings and quality always have to be made. The fastest GeForce card you can afford will be the best option for VR and iRacing.
I recommend not using Reflex + Boost and only run Reflex and leave power management mode in nVidia control panel to normal. It sounds counter intuitive but if you read more about what boost does it actually hurts performance if you are not CPU constrained. I have tested this with my system and it boosted FPS by 5%. Which leads to my next question. Might I ask why you had the conclusion that going to a 14th gen processor is not worth it? I know a lot of UA-cam channels reviewed it but they were doing benchmarks where all available threads were maxed out and the CPUs power throttled. This isn’t the use case for iRacing. I have the i9-14900KF and it runs at a steady 5.9MHz. This is higher than the 13th gen even without OC. Might be worth a look. I run full res on my quest 3 at 120Hz with all mirrors turned on and my CPU headroom is 60% in open XR toolkit
Good point about Reflex + Boost. I will investigate further and adjust my approach! The price premium for Intel 14th gen is tough to swallow. There are bundle deals for 13700K + mobo + RAM for less than the price of just the 14900KF processor. Yes the boards or memory may not be 'the best', but 14th gen with hand picked board and memory will cost... twice as much? You certainly won't get 2x the FPS. So from a bang-for-buck perspective, I find it difficult to recommend 14th gen.
@@BenchmarkOdysseys That's an interesting perspective! When I was customizing my system I hadn't seen those deals on the 13th gen with mobo and RAM. When I customized my system I found I was able to get the best CPU, mobo and RAM and save money on a cheaper graphics card. I'm optimizing for my 1% lows and keeping it so it never dips below 120fps with my Quest 3 as that was most important to me personally. It worked as my system has yet to stutter. I recognize your approach also works though. It's a fun problem to solve!
I was thinking here, basically there is only this Bottleneck CPU because you have a 4080 super, if I have a 12400f that is similar to the 5600, with a 3070/3080 I will probably have a better experience, I will have to lower the graphics, but the experience will be smooth when compared to the 4080 super and a 5600, what do you think? Would a 12400F/13400F go well with a 3070/3080 for VR Simracing?
Correct, you want a balance between CPU+GPU when running simulators. If there is a big gap between those components, you'll be under-utilizing one of them.
The goal is zero! But I'm testing the most difficult scenario: 1st lap of the race. After about 3-5mins there's more spacing between cars and some drivers have retired, therefore, less to render and FPS goes up for all the CPUs tested. Personally, I can tolerate some sluggish performance for the first couple laps if that means the remaining 90% of the race is a smooth experience at higher quality graphics. But that's a personal preference and I know others feel different about that.
@@quuub5089 Stutters in iRacing often occur along the pit straight because that's where pit boxes, stationary cars, and most buildings are. Dropped frames result in the previous frame to be displayed again, which totally disrupts forward movement. That experience can be more visually disruptive than Motion Smoothing or Async Warp (which cuts frames in half to maintain consistent motion), but if triggered too often, that can also be very annoying.
Real-time compute is very similar to replay playback, especially with iRacing. However, the dynamic interaction with AI or human opponents is a big variable and directly affects real-time performance (from run to run). The proximity to other cars is perhaps the most significant contributor to performance variance. This is especially true in triple screens (with proper view ports) and VR, and with mirrors enabled.
Great combo. Basically you have two approaches to tuning: (Option A) Determine what resolution is the 'best' for your headset, then tune down graphic options until it's stable (Option B) Determine what graphic options matter the most to you, and tune down resolution until it's stable. If you race in multiple disciplines, pick the one that is most challenging on your hardware. Usually that's multi-class on a track released in the last 2 years. If you race in series that can rain, and you don't want to adjust settings for wet race, you should tune Option A or B to a wet session.
@ my issue is that I can get good resolution, and fpsvr shows very little GPU and CPU usage, but I get horrible stuttering and freezing. No clue why? The P bar (paging) spikes and sometimes the R G and T bars will all spike up and turn red and my screen freezes for like 2-5 seconds. This pc should be plenty powerful. I have almost all graphics setting turned off in iracing as well. So no clue what the deal is and why I get such bad freezing when my GPU and CPU show barely any usage while playing.
@@skltr21 Sounds like a hardware failure, or you've made a mistake with hardware configuration. Definitely check that your 14900kf is not damaged from Intel's bad micro-code, especially if you've been running an overclock or AI tune. I can't help you directly with that but there should be lots of sources of info out there.
Hardware videos for simracing is such a niche, thanks so much for all your work putting together these benchmark videos, they're really helpful for choosing the right parts for a simracing PC 👍👍👍
I'm kinda geekin' out here. Great charts, great descriptions of the data and what to look for.
Thank you for all the hard work this represents. Very usefull for our small but passionate VR sim-racing community.
Thank you! I'm glad to hear it's useful for you :)
@@BenchmarkOdysseys It is very useful indeed. How come that I still have stutters in VR in corners with a 12700k/Rtx 4090 with everything set to low - no mirrors (only virtual 90 degrees FOV)?
Any suggestions where to look in order to fix this? Do you have zero stutters in VR at all at low/mid settings without mirrors
@@BeachClub_1 I'm glad it's useful :) Your question is difficult to answer because there are so many things that can contribute to your problem. It's critical that you find a consistent way to 'test' and identify those stutters. Then go through and check all of your hardware assumptions, then software configuration, always referencing back to that test and if the fix worked. If you'd like help doing that, you can contact me through my website :)
@@BeachClub_1 Could be so many things, background processes, ram timing etc. VR is a fickle animal but when its working it's heavenly
Complex topic, deeply analyzed and not overly simplified to enable even the last UA-cam watcher to understand and like and subscribe. Thank you!
This is one of the better series I've seen...probably because it is what I'm interested in, but as someone who's been racing in VR since the first gen Oculus stuff I actually learned some stuff. What is funny is that I just "upgraded" my 7900x to a 7800x3D and it uncorked my RTX4090. Don't get me wrong, it was a strong performing machine, but the 3D v-cache even at lower clocks and less cores is a beast. Funny is that I installed it and first thing I did was run some 3D benchmarks just to make sure that temps and clocks were fine and I was kind of worried because there was literally no difference in performance....I mean a few frames here and there. Fired up some racing games in VR and it was night and day. The other unexpected change is power draw...it sips power which means less heat which we all know the benefits with modern hardware and clocks and stuff with heat.
Yep the 3D v-cache is just amazing in the value it adds. The other aspect to consider with the 7800X3D vs the 7900X - while yes the 7900X has 4 more cores, they're distributed across two CCD's, each having 6 cores. Any time a game uses more than one CCD there's a rather substantial latency penalty when they have to communicate between each other across the infinity fabric. I've never messed with the 7900X so I don't know how iRacing schedules its threads across that chip, but if they're smart they kept it to the first CCD, in which case you've actually gone from effectively having 6 cores available to the game with no vcache to 8 cores with vcache. I'm rocking the 7800X3D and loving it for my Pimax 5K Super.
Also, if your motherboard has an external clock generator, there's actually support on AM5 for a little bit of overclocking of the X3D chips via bclk increases. If you're interested in that, checkout the youtube channel "skatterbencher" for his overclocks of the 7800X3D
Thank you for this man, these benchmarks for VR use within Sim Racing is really needed. This was great!
18:56 《-- my gawd! That level of detail. You've earned a sub 👍 thanks for all the hard work.
Love this. Those area graphs are golden!
👍👍👍Superb video! PCs have been my hobby for over 30 years but I had never seen such awesome FPS analogues in my entire life. I always play with Vsync and 100 or 120 FPS. Now I can see which CPU always manages it.👍👍👍
Wow, how have i not discovered this? Fantastic info for us iracing VR tragics. I just pulled the trigger on my first AMD cpu (9800x3d) off the back of this. I have been with intel since the pentium days but I was burnt with the 14900k quite literally with two RMAs! Keep up the good work!
Thanks you :)
Great video man! Thanks so much for all the work you put into this!
Thank you so much! Great video, really is very informative. It's so hard to find stuff like this for vr and iracing
This is some excellent VR testing. I haven't seen anything else like this from a lot of hardware reviewers or VR reviewers. Have you ever thought about expanding into flight simulators like DCS and MSFS as well? I think that would of great interest to those communities.
Thanks friend :) Yes, I totally want to expand into flight sim. I'm intimidated because there's a lot I don't know about those simulators, but I'd like to produce something of value for those communities.
Thanks for the video. I'm planning to upgrade my cpu/mobo/ram and this video helped immensely. Most detailed vr benchmarks i have seen for iracing so far. Great work!!!
Awesome data I'm currently on 5800x3d but fomo'd and ordered a 9800x3d without really knowing how much difference it will make but now I can see it will make a huge improvement for VR!
Your testing is cutting edge, pretty much every other YT channel even the likes of Gamer Nexus use 1080p averages and it's just not representative of what people use these chips for.
Looking forward to your 9800x3d tests :)
Thank you for the unimaginably great work. Very useful!
Video of the month before upgrading. Thank you, my friend!
Wow man this is awesome. The data geek in me is nerding out hard on this one LOL. Definitely earned yourself a sub.
One thing I'd be curious to see is your results with a 7950X3D compared to the 7800X3D. 7950X3D clocks a bit higher so it can perform slightly better IF Windows schedules things properly (which is not always a given). It'd be curious to see how the two compare. Like so many have said, it's kinda ridiculous that technically the fastest gaming CPU is a 7950X3D with the second CCD disabled lol
Thank you for doing these types of benchmarks. My choice was for the 7800xt gpu because its more on the affordable side of things. I hope it wins😎 peace✌️
true, insane effort and understanding "that stuff". what is most appreciated your ability to explain in simple way it to us simracers
Cheers mate!
Considering they are all AM4 the difference between the 2700, 5600 and 5800X3D is kind of remarkable - X3D jump is so large. AMD really nailed support for that generation of socket.
Currently I run a Ryzen 3600 with an RTX 3080 on a 60" 4K display and my next planned upgrade is to the 5800X3D.
very cool video!
You could think about adding a graph with the cumulative curves, it would be possible to see how many % of frames stay below a certain frame time - could be interesting
I'll give that a go. Cheers, mate!
Super video! I currently run 10600K on iRacing VR and it just isn't cutting it. Updating to 7800x3D
Very complete! Very informative! Super big thanks 🙏.
Just bought a 5800x3d because I already have AM4 PC. Had a panic when I saw these numbers, but reassured myself when I looked at the cost of am5 mobo and ram. I am still on a 2080ti so it works for me for now and is balanced.
For a new build with a 4070, AM5 7800x3d is no brainer however.
Congrats on the upgrade! 5800X3D is great processor and is still the best bang-for-buck with new builds because of the wide selection of inexpensive mobo and DDR4 memory. Enjoy that 3D V-Cache!
I have the exact same setup and running VR great. I think GPU is the next thing to upgrade for consistency in rain. But then again I know nothing😅
Great stuff, that 5800X3D is a great chip. It's possible your 2080 ti is actually holding back the CPU. If you're running VR I'd load up fpsVR and see how your CPU and GPU frametimes compare.
great work - really appreciate all the effort.
Fantastic work, so much work, thank you!!
love that you're tackling this.
Very nice! I’d like to see the how the 4080 perform in ACC vr. Great video ! Congrats!
Thanks! I'll take a crack at ACC, but my first experience wasn't great. I'll see what I can do. Cheers :D
Pretty awesome. Appreciate the work! Upgraded from a 5800x3d and 3090 to 4080 Super and 7800x3d and have been trying to dial in settings for my Q3, and it’s a pain. I want to run 120 Hz, but it just might not be feasible, but I’ll see what I can manage. Thanks again!
What a video mate! Thank you!
Great Work thank you. This solves a lot of question that most of us found out the hard way. Keep it up.
Great video, thanks for putting it together. 👍
Thank you very much for your awesome work!
Can we expect similar results for ACC?
Thanks my dude :) I will make an attempt at it! But compared to iRacing, the VR experience within ACC is far more problematic.
@@BenchmarkOdysseys Thanks for your reply! Just want to know if the ranking of the CPUs is approximately similar not each individual "score".
(OpenXR-toolkit helped me a lot with ACC in VR)
Thanks, it is exactly what I was looking for, I subscribed :)
This is literally what I was hopping to find with all the nonsense mainstream reviewers for the 9800x3D. They basically gave us numbers that nobody cares about. Most of us looking to upgrade are not concerned getting 250 to 300 FPS in 720p and 1080p modes we are wondering if the upgrade from 2 generations ago makes sense and it will make our gameplay smoother in high demanding sims. Thank you for all the work you've done. I'm gonna extrapolate from this and conclude that going from 5800x3D to 9800x3D makes sense if you are thinking of racing with rain and high car count races. Now, I usually use AMS2 and maybe rFactor2, do you know if your results still apply.
Thanks dude :) I'm on a wait list for 9800X3D, no ETA. I will share results as soon as I get them!
Amazing Video !!!!
One small thing I’d suggest is also looking into the “car data” processing. Eg: back in the 2010s before overlays were popular we would use the car data setting to control how many cars were being processed by iRacing. However, overlays require 63 cars to be accurate. It’s why I think iRacing should move to a race data api to offload that processing from the base PC
This should prevent a lot of the CPU destroying GPU frame time. The only track I think that NEEDS more than 25ish cars is Daytona and Tally in NASCAR, which is easier to process than IMSA anyway
Interesting! I wonder if iRacing will tackle some of this when it overhauls the in-sim Hud.
Thank You for Your job
I really hope this channel grows and becomes a giant channel.
Amazing effort. Incredible video.
Would sub 10 times if I could!
I would love to see the same with gpu in vr with amd and nvidia please!
Thank you very much, your work is so usefull for simracer
Great work!!
This video popped up at the perfect time. I’m currently on a r5 5600x with a 4080. Been struggling with the cpu for sometime now and the game took a shit on me during the sec lap of 12hr Sebring. I’m now upgrading to the 7800x3d.
Cheer mate, glad I could help! I think the 5800X3D would be a good and simple upgrade if you don't want to do the full system. But yeah, 7800X3D is the best out there right now.
@@BenchmarkOdysseys just installed it all and holy wow! what a difference! smooth as butter with the 7800x3d
would love to see a similar video for assetto corsa
Love these vids!
You're a badass
Hi,
Very nice Video. Wow you nearly maxed out the Graphics xD! Can i run the same settings on my i5 13600kf and 4070ti, 32gb an a Reverb g2? Tahnks :D
G2 has a higher pixel count than Valve Index, and I deliberately kept the resolution low on the Index to avoid the GPU holding up FPS. If you ran this resolution with your G2, it would look very poor!
Also, there have been updates to iRacing since this video which have slightly decreased performance. So there's a bigger impact to FPS today for these settings, than there was 7 months ago.
But your 13600kf is a good CPU, and if you haven't already, I would explore tuning it for extra performance. Changing the voltages and increasing the clocks. You can deploy a similar strategy with 4070ti.
Amazing data.
Can you make a tutorial on how to measure it ourselfs? I'm curious, running a decapped 4790k and a 3080 in a custom waterloop i want to see if i really need to switch :D
Brilliant. Loved this video.
Can I find this benchmarking oftware anywhere to test my set up?
Cheers mate. fpsVR can be downloaded from Steam store. It will not function properly with Quest 2 or 3 or any HMD that encodes the video stream for wireless or USB transfer.
@@BenchmarkOdysseys Thanks for the info buddy.
Incredible job. Those benchmarks are so insightful. Thank you. Zandvoort with mirrors does not render 100% on time on my 7800x3d I don’t know what’s different my settings are lower? Cannot run that tool I think am not running IRacing through steam.
Thanks my dude :) I think the Valve Index runs more efficiently than most other headsets and software packages. But even when using the same replay file, if I change to a different GT4 cockpit, I will see different FPS results. Such is the fickle nature of iRacing. So your system may run the benchmark I made smoothly, but your real-time sim experiences at Zandvoort may be more intense than what I've tested.
Just upgraded off the back of your benchmarks, I have a 7800x3d and a 3080ti do you have any advice setting up the 7800x3d and ram as I'm having terrible stuttering even though fps is solid 90fps in vr and 100+ on monitor.
Oh no! Have you posted in the iRacing forums yet? It's easier to converse there, share settings, and get input from others who may have resolved similar issues. Recently I saw someone Disable "USB selective suspend setting" under Advanced Power settings to fix VR frame drops.
@christophersimmons4276 what RAM are you running? If they have Hynix chips on them then there's actually a decent amount of tweaking you can do to tighten up the timings quite a bit.
120hz? No dice without upgrading to a new platform from my 5800X. Thanks for the useful information.
8 CPUS!
Great work. This kind of work takes time and dedication. Kudos. Is there anything to be said for the 7900X3D when it comes to the torture test? Would the extra 4 Cores help in your opinion?
Thank you :) I have not personally tested the 7900X3D or 7950X3D, however, I have read up on the design of those chips and results reported by others in traditional 2D gaming. Dan Suzuki showed some great results with his 7950X3D with iRacing and triple screens. But iRacing generally demands a lot from just 2 cores, and the rest cores rarely go above 20% utilization during my testing.
The main problem you'd run into with a 7900X3D or 7950X3D is only one of their two CCDs have the vcache, and there's a rather substantial latency penalty when any data has to cross the infinity fabric from one CCD to the other, so effectively when you're gaming the game needs to be restricted to just one CCD (vcache for games that benefit from it, or the other higher clock speed CCD for games that don't). I know at one point AMD had a prototype dual CCD chip where both of them had vcache but it never made it out as a production product and my guess is probably for that exact reason - even if both CCD's have vcache, a game using both CCD's would still require them to communicate with each other over the fabric and incur the massive latency penalty (which vcache is meant to minimize in the first place). And since the 7900 is a dual 6 core CCD chip, you only get 6 cores with vcache so to me that CPU doesn't make much sense. At least with the 7950X3D you're getting one 8 core vcache CCD (and slightly higher clocks than the 7800X3D gets) and one without. In theory the second CCD can be used by other background processes, leaving your vcache CCD dedicated to iRacing, which is beneficial so long as Windows schedules things properly (which unfortunately it doesn't always do).
Coming back to your vids after a PTO. Congrats on hitting 1k subscribers!! Did you decide on which card you're getting from Team Red yet?
Thanks my dude. Amazing to see the support gather so quickly :) The results for the poll came in pretty clearly: +50% voted for the 7900 XTX. So that's the card I'm working with now!
@@BenchmarkOdysseys awesome! I'm going to *try* holding off on the 7900GRE vs 7900XTX decision then. Lol
This is fukn gold
Great video ! I was wondering what would you suggest for settings on a 5800 X3d with 4090. I notice that GPU is only utilized by 60% and FPS is just around 110 FPS on full grid in Daytona
Thank you :) iRacing is super inefficient when there's a bunch of cars very closely packed together. That's one of the reasons why Zandvoort and Daytona are the most demanding scenarios I tested in this video. That's why people often suffer FPS drops on grid and first lap. When the herd thins out a bit, it's much easier on the CPU.
I love your work here with vr and sim racing. One thing I’d like to bring up is bit memory bus size on gpus. The 4080 has 256 (same with 3070 ti) how do you think the cpu would be affected if you used a 3080/3090ti/4090 for its 384 bit memory bus size?
When I was using my 3070 with 5800xt I was getting better graphics and fps when I balanced out the graphics and frame rate. When it was low at 72 and low settings my cpu was actually under more load and stuttering. When I bumped to 90 and mid range graphics my cpu usage went down (and looks better) very interesting to me. Hope you find this.
I'm curious, where do you think a R9 3900X would fall in this mix? My hope is somewhere around the 5600, otherwise I'm gonna need to upgrade sooner than I thought
3900X was amazing for it's time (12c/24t in 2019!) but when it comes to simulation, I suspect performance is less than Intel 10600K. The best chips for gaming/sims on AM4 are 5700X3D or 5800X3D.
Will there be a 7900xtx VR benchmark video soon? Or are the results comparable ebough to the 4080 super vs 7900xtx video?
Yes, I am working on the VR video with 7900 XTX. The preliminary results do not look good for Radeon. I'm also experiencing a latency issue with Radeon, but I am unable to measure it. I recommend sticking to Nvidia for VR.
only 1 problem in this bench... what`s error intel cpu unstability :)
Very Nice Video, Im currently in the market for upgraded slowly and my I7-9700k is showing its age not only on Iracing In vr with my reverb g2 but in newer open world games like Grayzone, Unfortunately by the time im looking at this it seems the 7800x3d has jumped in price and is hard to get... Hopefully i can pull through and get my hands on it, but would be nice to see how those other cpu's perform on some turned down settings like crowds and foliage
Thank you :) Yes, it appears like AMD is restricting supply to force new prices on potential customers. It is a risky strategy with Intel launching it's new platform in a couple weeks.
I have yet to revisit GPU/CPU benchmarking with VR because of the difficulty in producing informative results. It seems like the most desirable question becomes: Is VR possible on a given CPU or GPU for the testing scenario, and if so, how much were the graphics settings and resolution reduced?
To embark on that approach, I would need a robust method to track performance gains with each subsequent quality change. Then there's the assumption that what worked for 9700K would also work with say Ryzen 5600. Given the differences in architectures and motherboard design, such assumptions could be erroneous. Challenging, but I'm working on it!
@@BenchmarkOdysseys maybe it’s just me, there’s certain things I’ve personally turned down that aren’t deal breakers for Iracing, and there’s others I’d like to have back since the rain update which would be in car mirrors as that adds back to the immersion, regardless of my CPU is on the older side and the reason I mentioned itd be nice to see how those CPU’s performs with certain things down is because CPU’s like the Ryzen 7 5700x are still obtainable and very well priced. However that being said you clearly demonstrated that 7800x3D trumps all so far.
I do understand it’s a lot of work, myself I really appreciate this video because it was very informative :)
@@BenchmarkOdysseysone more question for you, all this data was taken with AI races ? Sorry if I missed that part in the video
@@Off_The_Rail I use replays because they produce the same computational demand on each CPU (like giving the same math test to a group of students).
iRacing is specifically sensitive to how many cars are visible, and how close those cars are to your driving FOV. If I did each benchmark run as an AI race, that would be dynamic and different from run to run. Then the results from each CPU cannot be compared to each other because the +/- variation in performance would be greater than 10%.
Note, head position and movement does not seem to matter with VR (at the time of this testing). Looking straight ahead, or tracking each apex, or wobbling my head around... all those produce almost identical frametime charts.
Great video mate. Any chance u can share somewhere, your exact settings for Nvidia, open xr and IR renderer?
btw. turning off hyper threading on Intel improves performance in IR
Ty! The iRacing settings are in the video, and I decided not not change anything else in the ini files. OpenXR is as described as well (FRR Performance/Wide). For NVCP, I've failed at measuring performance differences between the settings in there.. I think those are best to be tweaked on a per-system basis to resolve issues, rather than unlock performance.
Thanks for reply. @@BenchmarkOdysseys
Great video man! I’ve been trying to understand all this and your videos were the best, I am completely new into PCs, I just got 2 weeks ago what I was advice it was a powerful enough PC just because I wanted to race iRacing at maximums graphics, but I think I can’t, I have an Asus Strix RTX 4080super, i9 14900 and the Quest 3, should I be able to play iRacing at the best or not? I really don’t know yet, I’m to new into this, and watching a lot of UA-cam videos everybody is saying to turn off dynamic objects, so what kind of PC do we really need to be able to play iRacing with all the maximum graphics settings?? Sorry any mistake, English isn’t my first language. Regards!
Thanks dude, glad to hear my videos were helpful. And welcome to the PC community!
I benchmark at nearly max graphics because I want to stress the CPU and GPU as much as possible. Then I show the performance differences between each model. The 'real goal' with simulators is to tune the graphics and your hardware configuration so they run as smooth as possible.
Your Intel i9-14900 and 4080S with Quest 3 are top-end components (congrats ;) and I wish it was super quick and easy to set them up perfectly. But PC sim racing is not plug-n-play, which you're definitely realizing now! You can confidently pursue a smooth VR experience because your PC is very powerful. It's just a matter of discovering the best combination of settings, and takes time (trial and error) and patience (write down your learnings).
Unfortunately I cannot provide direct, technical assistance to you at this moment. I recommend you back reduce the iRacing graphics (for example, 16xAF and 4xAA, only 2 mirrors, and render cars 20 and 8) and Quest 3 (1.2x resolution and bitrate 500) or lower until it is smooth. Then gradually increase the settings until your VR experience isn't smooth. The official iRacing forums has a dedicated VR page, and that's a great place to research and ask for direct help!
@@BenchmarkOdysseys bro, thank you so much for your prompt reply, I will definitely try this and I will check the iRacing forums! I wish it was plug and play too hahaha still a long road to learn about the game and the PC world, thanks once again my friend, you got a new subscriber
Wish I saw this when I built my SIM PC for Quest 3 at the beginning of this year... I made a mistake and paired 4070 Super with 7600, which is a good combo for everything BUT iRacing (my primary use case) 😢Saved money on X3D part when I shouldn't have. Could you please test 9000X3D CPU as soon as it comes out in VR to see if it's able to get all of those frames on time @120fps in all scenarios?
Also, do you think SSDs make any difference to iRacing load time/performance? I have 32GB RAM and mid tier M.2 SSD but see Paging bar in IR hovering in 50% yellow quite often
Honestly, 7600 is a great CPU. Sometimes I forget to put the 7800X3D back in when I do my league races, and I never notice the difference. With VR you want to tune your resolution/graphics with lots of headroom, even with the 7800X3D, and usually that's still within the 7600 capabilities.
@@BenchmarkOdysseys yes, but 120 fps is out of reach for 7600. Especially after recent iRacing updates frames dropped by like 30 fps with equivalent settings. Not sure why, but probably because now they run more car-diverse splits. I had to turn off all mirrors and drive only with the virtual one to keep the same frame rate. Settings are also not maxed out, resolution wise it’s at 1.2 oversampling I think. And even with this I can only target 90 fps without jitters. Would be cool to get to 120 that this headset is capable of. Fingers crossed for 9000x3d
@@nedis4 Gotcha. Yeah I agree, the next-gen X3D is what you'll need for 120fps in VR!
I'm curious to see if the results are any different with minor overclocking. For me and my old 9700K, the difference in end performance from stock clocks to 5.2G is significant.
Wow a 5.2 on the 9700K is mega!
@@BenchmarkOdysseys Yea, I'm pushing it hard with voltage. 5.0 is a more realistic goal if you want the chip to last. I figure I need to upgrade already so killing it in a couple years isn't a big deal.
i’m running a 9900K so hopefully that falls between the 9700K and 5800x3D in terms of performance
i have a 7800x3d and struggling tweaking like crazy to make the 3080 work on a quest 3, in the quality i want it. i reached the point where id say its close to a pymax, but now im stuck on 60 fps. i override the resolution with OpenXR toolkit and finnaly get the sharpness i wanted, but i guess my 3080 is not able to handle it quite well. Since i got the quest 3 its been a journey of hate, joy and pure dedication to get the quality i want. im close to where i want it , but now im hardware bottlenecked lul. never ending story.
i first thought my cpu is bottlenecked, since its only dipping around 30 % all the time. but the frametime and headroom from the gpu are all over the place, so my conclusion is im gpu bottlenecked. hopefully the 4080 fills that hole
Yes, 4080S will offer significant bump in performance compared to 3080. There are still inefficiencies within iRacing that cannot be resolved with hardware. So don't expect to achieve flawless performance with the upgrade.
It’s just crazy how the performance suffers in a night race despite looking quite outdated compared to other sims. I hope that’s something they can address in the future (both visuals and performance)
@Benchmark Odysseys: Any idea how the resolution affects the CPU load? I’m pretty sure we’ll soon see some Vision Pro competitors getting announced with high resolution Displays.
I will explore this in my upcoming GPU comparison in VR. Stay tuned ;)
@@BenchmarkOdysseys Awesome. Can't wait.
How do you find the visual compared to a monitor on the index with the graphic settings you run ? I been on VR for awhile now with a quest 1 as much as I do love it and I have no plans going back to a monitor it really is like playing a ps2 game at times lol.
Heh, yeah I got into VR racing with an Oculus VC1 and that was barely above PS1! Index is ok, but the screen door effect is still present. It's about on par with a 1080p monitor, or maybe a bit less. If I were buying a new headset now in 2024, I'd go with the Quest 3. Sure it has a few shortcomings, but the price is great for what ya get.
@@BenchmarkOdysseys I will need a pc upgrade first lol but yeah quest 3 seems pretty good unless you want to spend 1000-2000k on a headset. thanks for the info and the videos
@@BenchmarkOdysseys i went from an index to varjo aero. The overheads on the headset are just as tidy but much more pixels to push.
do you restrict pre rendered frames for VR to decrease latency? And can you recommend some settings that are cpu hungry and recommended to disable / enable?
I was unable to showcase a difference when adjusting Nvidia Control Panel VR Pre-Render Frames (1 to 4). Perhaps my configuration of hardware and resolution wasn't enough to trigger the impact of increasing it from the default (1). So your mileage may vary.
Cars and objects (LOD values), number of cockpit mirrors, and overall resolution have the biggest impact on CPU.
@@BenchmarkOdysseys thx! I will look into that!
@@BenchmarkOdysseys do you have low latency setting in nvidia control panel set to ultra? I think that forces only 1 so the bottom setting is moot.
@@peddlersend Lately I've been leaving NVCP default, however, this video was using Ultra Latency.
I am struggling with iracing with vr on current build and have ordered a 4070 super and a 7800x3d but just realized my tufx470 gaming motherboard is an am4. Now I’m in a predicament, do I send back the cpu and go for the 5800x3d or do I upgrade the motherboard as well? Suggestions?
Oh no! 5800X3D puts up great results and will pair well with the 4070S, and it will let you put off a full system upgrade. (You'd also need DDR5 memory for 7800X3D.)
Yeah found that out too after posting this, I was leaning towards new mobo but then it just keeps going, ddr5, possible different cooler, may as well upgrade storage too at that point….it just keeps going. Was basically looking at full rebuild. I thank you for replying and saving me a bunch of money 🤣
My CPU (5700x3d) is maxed out even when lowering settings to race. I get huge drops from 90 to under 50 in the rain or the NiS series. Would the upgrade be worth it to go to the 5800x3d? Also running a 2070 super, could that be causing issues? Cant afford to build a AM5 setup yet (I’ll end up spending a lot, pay once, cry once) so looking for CPU or GPU upgrades.
FPS drops are specific with rain? Try resetting your iRacing graphics with the auto-config option. Then make sure you disable SSR (advanced puddle shadows).
@@BenchmarkOdysseys yes sir from the rain, certain tracks are worse but I’m sure that is the track itself. Running the auto config weirdly makes it worse. I’ve put my oculus software to 72hrz because I’d rather lower frames and better quality than vice versa, it runs better there than at 90 and was able to up graphics on other tracks.
Just more information, I run oculus for races that aren’t rain and OpenXR for the rain and more taxing tracks.
I'm having a problem and don't know why this happens, do you have any idea?
My 7800x3D has timings of 10.x-11.1 running iracing VR with OpenXR with a Pico3 Neo 3 Link (Displayport Connection)
I don't have any background tasks running or anything. CPU utilization ~25% but the frame times are that high, also, in a solo offline practice at bathurst, for example.
It's normal for many VR users to see the R meter locked at a CPU frametime with OpenXR. It should be near the Hz you selected for your VR HMD. This is just a hiccup betwee iRacing using the OpenXR renderer and your VR software. The utilization being reported is an average for all cores, and doesn't show the normal CPU bottleneck with iRacing maxing out 1 or 2 cores.
@@BenchmarkOdysseys okay, interesting, thank you!!
So the rtx 4080 "eat" the 3D foliage much better then a RTX 3080.
thanks for the video :) Do you know a way to get rid of this horrible shimmering of the 3d trees? Find this very distracting in vr. I think i see the same shimmer in your video too...
Cheers :) Honestly, no I don't know how to reduce the shimmering. You can play around with different Sharpening, CAS, and AA effects but I see the same effect in other simulators like ACC. Personally, I turned off SpeedTrees and 3D Foliage for VR. But with repeat exposure it's possible to learn to ignore the weird rendering.
@@BenchmarkOdysseys The 3d trees from AMS2 in bathrust dont shimmer in VR...But it think they are made different. Looks like the leafs on 3D trees in AMS2 are made of alpha textures and in iracing are real polygons. Had the same problem in original Assetto Corsa with the 3D tree mods.
Nice video! How do you think 5700x3d would perform? Im thinking of buying it
Thanks :) The reduced boost cock of 5700X3D (4.1Ghz compared to 4.5Ghz on 5800X3D) is a significant. It's 9% reduction in clock speed, but the 5800X3D costs 70% more.
How much vram usage you have. Is 12gb bottleneck for vr?
My rig with 5800x and 4070ti is good playble. But i feel is on grain, i wish little bit more smoothnes and maybe 1-2 klicks more graphics
Even with the 7900 XTX and it's 24GB of VRAM, I've yet to encounter a 'normal' situation where it consumes more than 12GB with iRacing. Abnormal situation would be like 24hr IMSA race, starting grid with +50 car field. iRacing won't even allocate (within the ini file) more than 16GB to the 7900 XTX when I run the automatic hardware config. So yeah, 12GB VRAM is totally fine.
I have a 4070ti super and an i9 14900kf and my cpu seems to struggle with vr in iracing. Any suggestions?
Hey there. What makes you think your CPU is struggling with VR?
@@BenchmarkOdysseys iracing freezes and stutters a lot. I have everything set exactly the way you do and while racing, I get the entire game to essentially freeze for a few seconds, I still hear audio, but the screen freezes and I can’t control anything. Then a few seconds later the screen starts again and I can control things again. It makes racing impossible. Not sure why this is happening?
@@skltr21Damn, yes, I've heard of others having issues like this. It's likely something with your hardware/software configuration isn't playing nice with iRacing. I reformat and reconfigure my Intel and AMD platforms all the time, therefore, that's my knee-jerk recommendation. It's easier to start fresh and evaluate every change or addition, rather than working backwards with all the changes and assumptions you've already made with the current install.
Is the problem reproducible in an iRacing replay? Or only occurs in live races?
@@BenchmarkOdysseys not sure about replay. This is a brand new gaming pc I just got like 2 weeks ago. So everything is freshly installed and setup
@@skltr21 Gotcha. Unfortunately, that doesn't mean it was set up correctly. I helped a client who bought a new, high-end computer with 64GB of memory. But the builder used 2 kits of 2x16GB, which is a no-no.
I currently have a 7700k and 3080 (and do iracing in vr with a g2). Plan to upgrade to a 13700k. 3 questions:
1. Should I also upgrade from a 3080 to a 4080 super?
2. Is it fine if I build it in an itx case, or would that severely hurt performance from higher temps? Looks like the x3d might be better suited for an itx case
3. Looks like the x3d is slightly better than the 13700k but I heard it’s common to have headaches and issues with it. Which CPU do you recommend for the most streamlined performance?
Quick answers for ya: (1) You need a CPU upgrade first. (2) Lots of compromise on ITX, perhaps consider mATX. (3) I've never heard of headaches associated with X3D.
Flip me an email if you'd like to go into more detail on build options: benchmarkodysseys@gmail.com
Which VR Headset are you using?
ok i see, Valve Index, sorry
I wonder if this is the reason i see 90 FPS bounce to 89 quite often. My old school 8700k is late to the party.
I think that's pretty normal, even a quick drop to 88 (usually) doesn't generate a visual issue.
Hi. Are you using fpsvr to make a frame time graph or some other software?
Hello :) fpsVR is the tool to use. It's been recently updated to present 'summary' info within the headset after you end a session, or you can manually reset it without have to exit the sim. So you can do testing on the track, then RTG and go to graphics options to make changes, and then head back onto the track. It's very useful!
Open Xr have a better CPU performance on VR, or is steam VR the best choice for Iracing?
SteamVR will natively use OpenXr by default, you can see that in the advanced settings through SteamVR menu. iRacing supports OpenVr because it came out first, but how effective that protocol is with your headset depends on your HMD software. Keep in mind it's also a totally different rendererDX11.ini file so your graphics/replay settings are different.
i need u to upgrade your vr headset to like psvr 2 or reveb g2 at minimum
Increasing render resolution shifts the computation burden to the GPU. That's why I tested at lower resolution, to avoid a GPU bottleneck. Most reviewers of CPUs for pancake gaming will use 1080p to showcase the differences. Benchmarking at 4K usually isn't insightful (techpowerup always does that, check their CPU reviews).
But VR is more complicated than monitor gaming. So it would be interesting to know if CPUs do perform similar when bound to GPU performance.
@@BenchmarkOdysseys valve index have the lowest resolution look very bad i hade it and returned it after few hours of use
i have now psvr 2 for my ps5
so i was wondering what kind of gpu should i get dont want to spend to much either is there any gpu around 5-600 that can make it run flawlessly? without sacrifice resolution and fps to much
@@rinkumultani6515 Yes I agree, Valve Index does feel 'dated' now. Mine is very dependable, however, and always works even when Quest 3 lets me down.
"Without sacrifice" and "flawless" are not reasonable goals with VR racing, especially with iRacing. For example, I have helped multiple users with RTX 4090, and compromises in settings and quality always have to be made.
The fastest GeForce card you can afford will be the best option for VR and iRacing.
Test the 7900/xt
I recommend not using Reflex + Boost and only run Reflex and leave power management mode in nVidia control panel to normal. It sounds counter intuitive but if you read more about what boost does it actually hurts performance if you are not CPU constrained. I have tested this with my system and it boosted FPS by 5%. Which leads to my next question. Might I ask why you had the conclusion that going to a 14th gen processor is not worth it? I know a lot of UA-cam channels reviewed it but they were doing benchmarks where all available threads were maxed out and the CPUs power throttled. This isn’t the use case for iRacing. I have the i9-14900KF and it runs at a steady 5.9MHz. This is higher than the 13th gen even without OC. Might be worth a look. I run full res on my quest 3 at 120Hz with all mirrors turned on and my CPU headroom is 60% in open XR toolkit
Good point about Reflex + Boost. I will investigate further and adjust my approach!
The price premium for Intel 14th gen is tough to swallow. There are bundle deals for 13700K + mobo + RAM for less than the price of just the 14900KF processor. Yes the boards or memory may not be 'the best', but 14th gen with hand picked board and memory will cost... twice as much? You certainly won't get 2x the FPS. So from a bang-for-buck perspective, I find it difficult to recommend 14th gen.
@@BenchmarkOdysseys That's an interesting perspective! When I was customizing my system I hadn't seen those deals on the 13th gen with mobo and RAM. When I customized my system I found I was able to get the best CPU, mobo and RAM and save money on a cheaper graphics card. I'm optimizing for my 1% lows and keeping it so it never dips below 120fps with my Quest 3 as that was most important to me personally. It worked as my system has yet to stutter. I recognize your approach also works though. It's a fun problem to solve!
I was thinking here, basically there is only this Bottleneck CPU because you have a 4080 super, if I have a 12400f that is similar to the 5600, with a 3070/3080 I will probably have a better experience, I will have to lower the graphics, but the experience will be smooth when compared to the 4080 super and a 5600, what do you think? Would a 12400F/13400F go well with a 3070/3080 for VR Simracing?
Correct, you want a balance between CPU+GPU when running simulators. If there is a big gap between those components, you'll be under-utilizing one of them.
how many % of late is still fine to have?
The goal is zero! But I'm testing the most difficult scenario: 1st lap of the race. After about 3-5mins there's more spacing between cars and some drivers have retired, therefore, less to render and FPS goes up for all the CPUs tested. Personally, I can tolerate some sluggish performance for the first couple laps if that means the remaining 90% of the race is a smooth experience at higher quality graphics. But that's a personal preference and I know others feel different about that.
@@BenchmarkOdysseys how would a 95-90% look like is it a stutter every once in a while or like microstutters every few seconds?
@@quuub5089 Stutters in iRacing often occur along the pit straight because that's where pit boxes, stationary cars, and most buildings are. Dropped frames result in the previous frame to be displayed again, which totally disrupts forward movement. That experience can be more visually disruptive than Motion Smoothing or Async Warp (which cuts frames in half to maintain consistent motion), but if triggered too often, that can also be very annoying.
If the simulation logic doesn't run during a replay then this isn't a realistic benchmark
Real-time compute is very similar to replay playback, especially with iRacing. However, the dynamic interaction with AI or human opponents is a big variable and directly affects real-time performance (from run to run). The proximity to other cars is perhaps the most significant contributor to performance variance. This is especially true in triple screens (with proper view ports) and VR, and with mirrors enabled.
a rtx 3080 with a 13400f shoud be enough
25 sec intro is too long... it's nice but get right into it with youtube.
Heh, but it's my hype music! ;)
I have a 4070ti super and 14900kf. What should my iracing resolution settings be for best performance?
Great combo.
Basically you have two approaches to tuning:
(Option A) Determine what resolution is the 'best' for your headset, then tune down graphic options until it's stable
(Option B) Determine what graphic options matter the most to you, and tune down resolution until it's stable.
If you race in multiple disciplines, pick the one that is most challenging on your hardware. Usually that's multi-class on a track released in the last 2 years. If you race in series that can rain, and you don't want to adjust settings for wet race, you should tune Option A or B to a wet session.
@ my issue is that I can get good resolution, and fpsvr shows very little GPU and CPU usage, but I get horrible stuttering and freezing. No clue why? The P bar (paging) spikes and sometimes the R G and T bars will all spike up and turn red and my screen freezes for like 2-5 seconds. This pc should be plenty powerful. I have almost all graphics setting turned off in iracing as well. So no clue what the deal is and why I get such bad freezing when my GPU and CPU show barely any usage while playing.
@@skltr21 Sounds like a hardware failure, or you've made a mistake with hardware configuration. Definitely check that your 14900kf is not damaged from Intel's bad micro-code, especially if you've been running an overclock or AI tune. I can't help you directly with that but there should be lots of sources of info out there.
@@BenchmarkOdysseys it’s brand new. I just got this pc from Lenovo about 2 months ago. I used intels cpu check tool thing and it says mine is fine
@@BenchmarkOdysseys I do not have it overclocked at all