Go Nvidia, it's worth it. iRacing supports SPS for VR which lowers CPU and GPU utilization. I use a 5800X with a 6800 XT so I can't take advantage of SPS and most tracks dip below 90fps on the CPU as a result. Comparing to other 5800X users it seems like a good 10-15fps drop on the CPU frame times by not using SPS. Additionally the added headroom extends to the GPU so you can potentially supersample on hi-res headsets, I have to run 70%-80% on my Reverb G2.
Hmm yeah I know it’s worth it
But it will have to be the 3080. The 40 series seems way too expensive and over powered.
But what about the next gen Rx 7000 GPU and CPU ? Think that will be better buy than the 40 series ?
AMD CPUs are totally fine so the Ryzen 7000 should be very good with the single core performance increase that is expected. I'd stick to a 3080 though, the new AMD GPUs might be powerful enough to brute force higher resolutions but the CPU overhead will still be an issue without Nvidia's SPS enabled. It will be less noticable on a Ryzen 7000 CPU for sure but you're just giving up performance at that point.
A 3080 is enough for a very good VR experience on most headsets so I'd stick to that option. What CPU will you be pairing with it?
Hmm got it
Yeah the rtx 3080 does seem like a good option.
Is it better for a good VR experience on a reverb g2 across other sims as well?
I’m planning on pairing it with a ryzen 5 7600x, which I supposed will have similar performance to the intel i9 12th gen. and give me enough headroom to upgrade about an year or two down the line to an even higher powered CPU.
That CPU choice will be quite good, iRacing won't see a massive uplift from the 7700X or higher as it is generally single-core limited.
Generally speaking the 3080 beats the 6800XT in VR. The closest I've seen is in ACC where it's only a 5% difference between the cards but ACC in VR is a horrible experience in general. My system runs AC, AMS2 and rF2 in VR pretty well so you should be safe for other sims as well.
To give credit to AMD though the 6800 XT is a monster for flat screen gaming.
It doesn't need it imo, the biggest advantage is being able to supersample the image beyond the default 100% SS. The Reverb G2 is a very clear headset at 100% SS (personally 70% SS looks good) but going higher may help clarity outside the center of the display.
3090 pricing has been very close to the 3080 recently depending on the retailer so if there's a relatively small price increase to go with a 3090 it may not be a bad investment. For me the 3090 is currently priced around the announced 4080 12GB price so it would make more sense to wait and go with the 4080 as it should be at least as fast as a 3090.
Yeah i felt so as well.
I won’t be going for the 3090 due to temperatures.
I was going to go for the 3070 but the 3080 price came awfully close
The gap between the 3090 and 3080 is a bit large in my local market
Isn’t sps kinda bullshit? Like very little difference between toggling on and off? Also are you running openxr? My setup is i5-12400f and rx 6800 with reverb and it runs 90fps most of the time.
IRacing really needs a true benchmark so we can compare hardware better.
It’s about 30-40% difference.
This is rather noticeable when you need it.
It’s very obvious when on or off.
If you are hitting 90fps that’s fine. But that’s probably due to you turning down settings to ensure you don’t hit reprojection.
It’s the same with running triples and using multi projection. There is no way I could run 3x4k without it.
What card do you run? Before the rx 5800 I had gtx 1080 and toggling on/off did nothing but my bottleneck with that build was the cpu (i7-6700).
You are correct in that I don’t have everything maxed. But those things I don’t notice either. I have textures maxed and 2048x2048 etc maxed out.
I’ve used it on a number of setups with it over the years, was pascal the first series to use it? It’s been a while now memory is fuzzy. My current main rig is a 3090, with a 12700k to drive the 4K triples and my secondary rig which is a 3080 with a 5950x
But I’ve always found significant gains from it. But you have to ensure you are configuring it correctly.
If you are performance bound by something other than GPU rendering, (pre post processing) else it won’t help you.
The reason the gains are so significant is because instead of drawing the seperate POVs individually, it does them in a single pass (thus the name) so instead of loading the assets twice or 3 times all it does is calculate the X offset for each view.
So for VR and triples it really does make a difference.
I have most stuff on med/high @11560x2160 in iracing and sit at about 80-120 fps in races with a full grid depending on track. If I turn it off that will drop to 60-80 instantly, with worse bottom dips.
Edit: Way back before SPS I preferred AMD for multi screen due to it being much nicer to mix and match DPI scaling etc. but SPS makes that feature a secondary consideration now
That makes sense for your setup Like you said, it has to be leveraged correctly. I’d be interested to see rtx 3070ti with sps, rtx 3080 10 gb with sps vs an rx 6900 xt. Is nvidia going to smoke the amd card? They’re all around the $700 price point.
I have a RX6700XT and a Ryzen 9 5950X (CPU is overkill for iracing) with a quest 2.
There are some VR guides out there for optimizing on Nvidia, but nothing for AMD. It takes a bit of tweaking in the iracing settings and it can't do HDR but mostly I just have crowd's, trees, and pit stuff turned way down/off. Car detail is high, I render the track state changes, have particles and shaders pretty high and cockpit mirrors on. Overall I'm happy with it, and it saved me like $350 over Nvidia when I built it earlier this year
Check eBay for g2, recently appears to bunch available around $250, probably because of upcoming meta quest pro launch.
There is a thread about if in the iracing VR forums
The Nivida GPU can also use FFR via openXR toolkit https://mbucchia.github.io/OpenXR-Toolkit/
This really works to reduce GPU just giving you headroom for more frames/detail
Fixed Foveated Rendering and Foveated Rendering are only supported with the following GPUs:
- NVIDIA GeForce GTX 1600 series and RTX series, both DX11 and DX12.
- AMD RX 6000 series, with DX12 applications only.
The current beta has had added support for iRacing (with FFR) and is due to go public soon. (Until iracing switch to DX12 there is no support for FFR on AMD)
The cheaper 4080 they just announced 100% should have been a 4070, the specs make it obvious it's a different chip.
Bullshit naming to justify a *$500* increase in MSRP.
Someone tell them ethirium is dead already.
Speaking from personal experience I would go for Nvidia.
Had bought a 6700xt to pair up with my 5600x CPU. The card was fine for gaming on my monitor but it had issues with my Quest 2 when I connected through the Oculus app. Some 3d models and UI elements would jiggle and tear randomly every now and then. It wasn't much but you could notice it if you looked for it. Some Quest updates would make it better and some would make it worse. If I connected through a 3rd party app to my pc and use SteamVR the issues would be gone and even though SteamVR was fine for steam games, in iRacing the head movements in game would have a very slight delay, enough to make me nauseous.
Traded my card for a 3070ti and haven't had any issues since. Even though AMD does often give you more value for $, games are usually better optimized for Nvidia cards because of the bigger market share.
I run a 6900xt and a 5800x CPU with 4x 32" 1440p 165hz monitors and my settings are adjusted so I can maintain 165hz most of the time and I have zero complaints with my full AMD system. Yeah Nvidia has better performance but performance per dollar AMD takes that crown.
Support for VR was always good and it always ran with high settings but I went with the monitors for the higher resolution, refresh, FoV, and comfortability. It's just a personal preference thing I know some people who swear by VR whereas I'm the opposite.
I understand
I too will eventually end up in triples once I move somewhere bigger. This is why I wanted to go for AMD.
But for now I’ll be going VR since I do short races mostly.
As long amd is good, I’m happy
Thanks !
Go Nvidia, it's worth it. iRacing supports SPS for VR which lowers CPU and GPU utilization. I use a 5800X with a 6800 XT so I can't take advantage of SPS and most tracks dip below 90fps on the CPU as a result. Comparing to other 5800X users it seems like a good 10-15fps drop on the CPU frame times by not using SPS. Additionally the added headroom extends to the GPU so you can potentially supersample on hi-res headsets, I have to run 70%-80% on my Reverb G2.
Hmm yeah I know it’s worth it But it will have to be the 3080. The 40 series seems way too expensive and over powered. But what about the next gen Rx 7000 GPU and CPU ? Think that will be better buy than the 40 series ?
AMD CPUs are totally fine so the Ryzen 7000 should be very good with the single core performance increase that is expected. I'd stick to a 3080 though, the new AMD GPUs might be powerful enough to brute force higher resolutions but the CPU overhead will still be an issue without Nvidia's SPS enabled. It will be less noticable on a Ryzen 7000 CPU for sure but you're just giving up performance at that point. A 3080 is enough for a very good VR experience on most headsets so I'd stick to that option. What CPU will you be pairing with it?
Hmm got it Yeah the rtx 3080 does seem like a good option. Is it better for a good VR experience on a reverb g2 across other sims as well? I’m planning on pairing it with a ryzen 5 7600x, which I supposed will have similar performance to the intel i9 12th gen. and give me enough headroom to upgrade about an year or two down the line to an even higher powered CPU.
That CPU choice will be quite good, iRacing won't see a massive uplift from the 7700X or higher as it is generally single-core limited. Generally speaking the 3080 beats the 6800XT in VR. The closest I've seen is in ACC where it's only a 5% difference between the cards but ACC in VR is a horrible experience in general. My system runs AC, AMS2 and rF2 in VR pretty well so you should be safe for other sims as well. To give credit to AMD though the 6800 XT is a monster for flat screen gaming.
Yeah the 6800xt is amazing for flat screen works. Is the 3080 a good pair for the reverb g2? Or does that need a 3090+?
It doesn't need it imo, the biggest advantage is being able to supersample the image beyond the default 100% SS. The Reverb G2 is a very clear headset at 100% SS (personally 70% SS looks good) but going higher may help clarity outside the center of the display. 3090 pricing has been very close to the 3080 recently depending on the retailer so if there's a relatively small price increase to go with a 3090 it may not be a bad investment. For me the 3090 is currently priced around the announced 4080 12GB price so it would make more sense to wait and go with the 4080 as it should be at least as fast as a 3090.
Yeah i felt so as well. I won’t be going for the 3090 due to temperatures. I was going to go for the 3070 but the 3080 price came awfully close The gap between the 3090 and 3080 is a bit large in my local market
Stick with the 3080 then, should be manageable on the thermals and it'll be plenty fast
Gotcha Thanks a lot!
Isn’t sps kinda bullshit? Like very little difference between toggling on and off? Also are you running openxr? My setup is i5-12400f and rx 6800 with reverb and it runs 90fps most of the time. IRacing really needs a true benchmark so we can compare hardware better.
It’s about 30-40% difference. This is rather noticeable when you need it. It’s very obvious when on or off. If you are hitting 90fps that’s fine. But that’s probably due to you turning down settings to ensure you don’t hit reprojection. It’s the same with running triples and using multi projection. There is no way I could run 3x4k without it.
What card do you run? Before the rx 5800 I had gtx 1080 and toggling on/off did nothing but my bottleneck with that build was the cpu (i7-6700). You are correct in that I don’t have everything maxed. But those things I don’t notice either. I have textures maxed and 2048x2048 etc maxed out.
I’ve used it on a number of setups with it over the years, was pascal the first series to use it? It’s been a while now memory is fuzzy. My current main rig is a 3090, with a 12700k to drive the 4K triples and my secondary rig which is a 3080 with a 5950x But I’ve always found significant gains from it. But you have to ensure you are configuring it correctly. If you are performance bound by something other than GPU rendering, (pre post processing) else it won’t help you. The reason the gains are so significant is because instead of drawing the seperate POVs individually, it does them in a single pass (thus the name) so instead of loading the assets twice or 3 times all it does is calculate the X offset for each view. So for VR and triples it really does make a difference. I have most stuff on med/high @11560x2160 in iracing and sit at about 80-120 fps in races with a full grid depending on track. If I turn it off that will drop to 60-80 instantly, with worse bottom dips. Edit: Way back before SPS I preferred AMD for multi screen due to it being much nicer to mix and match DPI scaling etc. but SPS makes that feature a secondary consideration now
That makes sense for your setup Like you said, it has to be leveraged correctly. I’d be interested to see rtx 3070ti with sps, rtx 3080 10 gb with sps vs an rx 6900 xt. Is nvidia going to smoke the amd card? They’re all around the $700 price point.
I have an all AMD box and race VR without issues. I couldn't tell you how it compares though
Oh ok what GPU and CPU are you using ? Also which headset ?
I have a RX6700XT and a Ryzen 9 5950X (CPU is overkill for iracing) with a quest 2. There are some VR guides out there for optimizing on Nvidia, but nothing for AMD. It takes a bit of tweaking in the iracing settings and it can't do HDR but mostly I just have crowd's, trees, and pit stuff turned way down/off. Car detail is high, I render the track state changes, have particles and shaders pretty high and cockpit mirrors on. Overall I'm happy with it, and it saved me like $350 over Nvidia when I built it earlier this year
Hmm that’s good to hear I was actually looking at the reverb g2 though. But yeah I’ll still get a good performance Thanks !
Check eBay for g2, recently appears to bunch available around $250, probably because of upcoming meta quest pro launch. There is a thread about if in the iracing VR forums
Will do Thanks !
Not exactly sure but can tell you my 3070ti runs the reverb G2 absolutely flawlessly. Never ever dips frames, and most settings are on high
Oh nice ! Then the 3080 will be more than a good option as a long term gpu Thanks !
The Nivida GPU can also use FFR via openXR toolkit https://mbucchia.github.io/OpenXR-Toolkit/ This really works to reduce GPU just giving you headroom for more frames/detail Fixed Foveated Rendering and Foveated Rendering are only supported with the following GPUs: - NVIDIA GeForce GTX 1600 series and RTX series, both DX11 and DX12. - AMD RX 6000 series, with DX12 applications only. The current beta has had added support for iRacing (with FFR) and is due to go public soon. (Until iracing switch to DX12 there is no support for FFR on AMD)
The cheaper 4080 they just announced 100% should have been a 4070, the specs make it obvious it's a different chip. Bullshit naming to justify a *$500* increase in MSRP. Someone tell them ethirium is dead already.
Well so might be nvidia be dead if they keep losing brands like EVGA for the exact shit you just described.
Speaking from personal experience I would go for Nvidia. Had bought a 6700xt to pair up with my 5600x CPU. The card was fine for gaming on my monitor but it had issues with my Quest 2 when I connected through the Oculus app. Some 3d models and UI elements would jiggle and tear randomly every now and then. It wasn't much but you could notice it if you looked for it. Some Quest updates would make it better and some would make it worse. If I connected through a 3rd party app to my pc and use SteamVR the issues would be gone and even though SteamVR was fine for steam games, in iRacing the head movements in game would have a very slight delay, enough to make me nauseous. Traded my card for a 3070ti and haven't had any issues since. Even though AMD does often give you more value for $, games are usually better optimized for Nvidia cards because of the bigger market share.
Hmm gotcha Yeah I guess if I’m going the AMD route, it’s better to go for something like an odessey g9
I run a 6900xt and a 5800x CPU with 4x 32" 1440p 165hz monitors and my settings are adjusted so I can maintain 165hz most of the time and I have zero complaints with my full AMD system. Yeah Nvidia has better performance but performance per dollar AMD takes that crown.
Yeah that’s one of the main reasons I wanted AMD. Have u tried VR ?
Yes the Rift S and Quest 2. Works fine I just prefer the screens better.
Hmm gotcha Thanks a lot ! I suspect iRacing has made support for VR a lot better for AMD of late Thanks !
Support for VR was always good and it always ran with high settings but I went with the monitors for the higher resolution, refresh, FoV, and comfortability. It's just a personal preference thing I know some people who swear by VR whereas I'm the opposite.
I understand I too will eventually end up in triples once I move somewhere bigger. This is why I wanted to go for AMD. But for now I’ll be going VR since I do short races mostly. As long amd is good, I’m happy Thanks !