FSR 4 can now be used in hundreds of games thanks to OptiScaler
, by Quentin
While it was limited to a handful of titles launched with RX 9000 cards up until now, AMD's FSR 4 can now be used in many games thanks to an update to OptiScaler.
Since version 2025.7.19 of this open source tool, it is possible to redirect rendering to FSR 4 in any DirectX 11 or 12 game supporting FSR 2, DLSS 2 or Intel XeSS.
Some limitations remain: games using Vulkan are not supported, and those protected by Easy Anti-Cheat or BattlEye block launch if they detect the proxy file.