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AMD Radeon RX 7900 XTX & RX 7900 XT Arrive For Linux Testing
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Originally posted by Quackdoc View PostFingers crossed for good RT,
"AMD’s own performance slides tout anywhere between a 47% and 84% increase in RT performance.
Though it should be noted that AMD’s numbers are with FSR enabled;
so we cannot divorce these gains from any changes that improve FSR performance on the 7900 XTX."
OMG, I just noticed that diagram shifted the baseline of the new gen scores by using perspective and pushing them back in the frustum. Wow, that's really sketchy.Last edited by coder; 09 December 2022, 03:24 AM.
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Originally posted by coder View PostFrom Anandtech's coverage of their launch event:
"AMD’s own performance slides tout anywhere between a 47% and 84% increase in RT performance.
Though it should be noted that AMD’s numbers are with FSR enabled;
so we cannot divorce these gains from any changes that improve FSR performance on the 7900 XTX."
OMG, I just noticed that diagram shifted the baseline of the new gen scores by using perspective and pushing them back in the frustum. Wow, that's really sketchy.
If their own numbers are confirming that they are unable to achieve atleast a 2× jump in performance without FSR, then what this means in practice is that Portal RTX will atmost deliver 2 FPS instead of 1 FPS @ 4K as is the case for the current top-end 6900 XT right now.
Truly remarkable...
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Originally posted by Linuxxx View PostThe outlook for RTRT on AMD looks even dire than I thought:
If their own numbers are confirming that they are unable to achieve atleast a 2× jump in performance without FSR, then what this means in practice is that Portal RTX will atmost deliver 2 FPS instead of 1 FPS @ 4K as is the case for the current top-end 6900 XT right now.
In general, it's clear that AMD opted not to try and compete with Nvidia on ray tracing performance, which was probably a wise move. They wouldn't have beat Nvidia, and yet it would've come at the expense of considerable amounts of conventional rasterization performance or die area.
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Originally posted by Linuxxx View Post
The outlook for RTRT on AMD looks even dire than I thought:
If their own numbers are confirming that they are unable to achieve atleast a 2× jump in performance without FSR, then what this means in practice is that Portal RTX will atmost deliver 2 FPS instead of 1 FPS @ 4K as is the case for the current top-end 6900 XT right now.
Truly remarkable...
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Originally posted by coder View PostMaybe Portal RTX is tickling a bad case in AMD's driver? In that case, some driver optimizations could go a long way.
That said, it's clear at this point that AMD is way behind on raytracing even without any dirty tricks from nvidia, and while i thought focusing on that was a little silly for the last 2 generations while most games didn't really do much with raytracing that wasn't gimmicky, it's starting to become more of an issue. I still don't think it's at the point where it matters that much yet, but I'm not so sure it will remain that way over the next couple of years, and that starts to matter more now with the new generation of cards.Last edited by smitty3268; 10 December 2022, 02:48 AM.
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