Testing AMD Radeon's Biggest-Ever Software Upgrade: FSR 4.1 on RDNA 3

AMD's new FSR 4.1 INT8 upscaler gives RDNA 3 GPUs a massive image quality upgrade. We examine visual quality, performance, ...
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AMD says FSR 4 doesn't work on old GPUs, but I forced it on anyway

AMD's FSR 4 is fantastic, but there's a big problem with it. It's only supported on two — count 'em, two — graphics cards right now. Despite being available in over 65 games, you can only use FSR 4 on ...
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How to Use AMD FSR 4 in Virtually Every Game That Supports DLSS

With a tool called OptiScaler, you can inject FSR 4 into any game that supports one of the three popular upscalers (FSR 2 and newer, DLSS, or XeSS). All you've got to do is unpack the OptiScaler ...
TechSpot

AMD Tried to Hide This: FSR 4 Upscaling Already Works on Older Radeon GPUs

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 ...