For the best results, set your in-game resolution to your monitor's native size and let the x64.dll handle the internal downscaling. The Verdict
Using the correct, uncorrupted version of this DLL is vital. An incorrect version can lead to: Game crashes upon loading. Visual artifacts (ghosting, flickering). No performance increase. Performance Impact and Optimization ffx fsr2 api vk x64dll exclusive
Denotes the second major iteration of FidelityFX Super Resolution, which shifted from spatial upscaling (FSR 1.0) to advanced temporal upscaling. For the best results, set your in-game resolution