iRacing VR with 8 CPUs
ฝัง
- เผยแพร่เมื่อ 7 ก.ค. 2024
- Intel vs. AMD with another round of benchmarking in iRacing. This time I'm using VR with my Valve Index and testing 5 different scenarios.
00:00 Intro
01:00 Thank you subs!
02:45 Learn about VR benchies
03:25 Hardware Summary
04:30 'Normal' Production Car Challenge
10:05 'Rain' Open Wheelers
12:35 'Difficult' IMSA
14:35 'Very Rainy' GT3
17:26 'Torture' Daytona Night
18:37 Thank you for watching! - เกม
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 :)
Thank you for this man, these benchmarks for VR use within Sim Racing is really needed. This was great!
Complex topic, deeply analyzed and not overly simplified to enable even the last TH-cam watcher to understand and like and subscribe. Thank you!
18:56 《-- my gawd! That level of detail. You've earned a sub 👍 thanks for all the hard work.
Great video man! Thanks so much for all the work you put into this!
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.👍👍👍
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
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!!!
love that you're tackling this.
Great video, thanks for putting it together. 👍
great work - really appreciate all the effort.
Fantastic work, so much work, thank you!!
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.
Thank you for the unimaginably great work. Very useful!
Very complete! Very informative! Super big thanks 🙏.
What a video mate! Thank you!
Amazing Video !!!!
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✌️
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
Love these vids!
true, insane effort and understanding "that stuff". what is most appreciated your ability to explain in simple way it to us simracers
Cheers mate!
Great Work thank you. This solves a lot of question that most of us found out the hard way. Keep it up.
Great work!!
Thank You for Your job
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.
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!
I really hope this channel grows and becomes a giant channel.
Amazing effort. Incredible video.
Would sub 10 times if I could!
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
You're a badass
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!
This is fukn gold
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.
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
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
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)
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.
would love to see a similar video for assetto corsa
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
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
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.
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.
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).
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 TH-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
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
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.
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.
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
8 CPUS!
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.
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 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 🤣
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.
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.
only 1 problem in this bench... what`s error intel cpu unstability :)
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!
i’m running a 9900K so hopefully that falls between the 9700K and 5800x3D in terms of performance
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.
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.
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 TH-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.
Test the 7900/xt
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.
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! ;)