FSR 4 modded to run on RDNA 2 GPUs improves image quality by "leaps and bounds," but carries 10% performance penalty —AMD's leaked source code turns into modding frenzy

AMD's accidental open-sourcing of FSR 4 led to modders adapting it for RDNA 2 GPUs, significantly enhancing image quality at the cost of a 10% performance hit. The modding frenzy extended to Windows, with users reporting improved visuals but reduced FPS on various GPUs. Despite performance penalties, FSR 4 offers better image quality, prompting users to adopt it for the visual upgrade. AMD is developing FSR Redstone for broader GPU compatibility, while modders continue to tweak FSR 4 for improved performance and fidelity.