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Darc Requiem said:

HoloDust said:

It is interesting to see that it works at all on RDNA3, albeit with huge performance hit compared to FSR3.1.

From my understanding, the Linux driver for AMD has an FP16 to FP8 translation layer that is not in the Windows drivers. So technically FSR4 is using two translation layers on Linux for RDNA3. The FP16 To FP8 translation layer and the Proton translation layer. 

We can't forget that, for some reason, Linux+Proton performs better than Windows in some gaming benchmarks, so things aren't that simple.

Of course, the reason Linux+Proton can perform better is because Windows is so bloated that it hurts its gaming performance, that's why MSoft has done a special Windows build for the ROG Xbox handhelds.