TL;DR: AMD's FSR 4 AI upscaling, officially using FP8 format on RDNA 4 GPUs, now unofficially runs in INT8 mode on RDNA 2 and 3 hardware, improving image quality over FSR 3.1 with moderate performance ...
AMD is working on a version of FSR 4 for older Radeon graphics cards, and today we are testing a work-in-progress build to see how it's shaping up. Is this version as good as FSR 4 in terms of image ...