Hi all, I'm in the market for a gaming PC. I'm looking to do a lot of PCVR mainly, so I will need a higher tier card with a solid CPU as well (looking at 9800 X3D).
Can anybody tell me first hand what would perform better on VR - a 4080 or a 7900XTX? I know 4090 would be ideal, but money and all that.
Thanks!
Get the 7900XTX.
The bad news is the AMD RX 7000 series have a major(ish) DisplayPort/HDMI tethered bug where the vsync_to_photon delay is 9ms off where is should be but you can use the SteamVR debug menu to adjust the number when you launch SteamVR. This make the tracking look wobbly.
The good news is it's getting fixed in the next driver update which I think will be in a couple days to a month.
In the meantime I've been using the 7900XTX with a Valve Index for a month and the tracking latency when adjusted is slightly noticeable but after a bit of play time it's barely noticeable.
https://www.reddit.com/r/ValveIndex/comments/1gdrxqi/help_us…
https://community.amd.com/t5/pc-drivers-software/added-laten…
What in your opinion makes the 7900XTX better than the 4080?
Not the comment OP, but the rasterisation performance/$ is better on the 7900XTX than on the 4080 Super, which is the only 4080 you can buy now that the 4080 is discontinued, since it's just better than the 4080 Super and is also around $150 less than the 4080 Super.
Also, you get better Linux compatibility due to AMD open-sourcing their Linux drivers and kernel modules, which allows them to be included in the Mesa drivers, which are included in every major Linux OS. This means Valve's Gamescope (which is what the Steam Deck uses in Game Mode) works better on AMD/Intel GPUs compared to NVIDIA GPUs.
However, you do miss out on a LOT of hardware-accelerated real-time ray-tracing (baked-in ray-tracing is different) and upscaling/frame-gen (DLSS 3+) goodness, as well as the superior video encoders (which are probably important for PCVR over USB for standalone headsets) and the CUDA platform. But if all you do is game, and you are comfortable with getting in the weeds every now and again, the 7900XTX seems to be the best bet in terms of performance/$. However, I'd advise you to buy the 4080 Super if the price disparity isn't that much.
I went from a 5700XT to a 4080 and the difference was huge, but that's most likely due to the upgrade rather than nvidia vs AMD. An X3D chip is also a great idea to keep those 1% lows in check. I went from 5600 to 5700X3D, it was a noticeable difference.
What headset are you using? this sounds like it would be quite an expensive setup
I'd be using a meta quest 3.
Add a poll
Thanks! Didn't know that was a thing. Added it.
That's a lot of money to spend for VR, I have the PSVR2 and I get bored of it plus motion sickness..
I'm practically immune to motion sickness, so no issues there. I love PCVR, especially open(ish) games like Skyrim VR and Elite Dangerous.
I don't know about VR, but if you're pusing high resolutions (and multiple at that) I'd assume DLSS would be a feature you'd really want there. compared even to FSR3, there's a lot less artifacting and motion issues with DLSS. Plus frame gen (if there's VR games that support that yet? I dunno) is better on nvidia's side too.
Get both and run in SLI!!!!!