Enthusiast Confirms Why FSR4 Was Exclusive - FSR4 tested on 7900xtx

TL;DR AMD knew what they were doing - backported FSR4 on 7900xtx sees better image quality than FSR3 with a 20-30+% performance penalty, only provides higher frames than native at 4k. Lower resolutions *lose* FPS.

Experiment by /u/Virtual-Cobbler-9930

https://www.tomshardware.com/pc-components/gpus/enthusiast-hacks-fsr-4-onto-rx-7000-series-gpu-without-official-amd-support-returns-better-quality-but-slightly-lower-fps-than-fsr-3-1