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Latest FSR 4 source code 'leak' lets you run AMD's AI upscaling tech on nearly any GPU — no Linux required

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Tom's Hardware

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AI Generated

AMD's latest FidelityFX, FSR 4, offers improved upscaling but is officially limited to specific GPUs. However, leaked source code allows FSR 4 to run on nearly any modern GPU in various games. A Reddit user compiled the code into a usable form, enabling FSR 4 through OptiScaler, providing enhanced visuals but with a slight FPS drop. While FSR 4's image quality surpasses FSR 3 and Intel's XeSS, it still falls short of NVIDIA's DLSS 4. Despite some limitations, this unofficial method offers a viable upscaling option for non-DLSS users.

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