FSR 4 arrives on Steam Deck thanks to Decky Framegen, and it makes upscaling look way better
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AMD originally made FSR 4 exclusive to its newest Radeon RX 9000 series GPUs, leaving older cards out of the picture. But the modding community didn’t waste any time. After AMD accidentally uploaded FSR 4 source files to GitHub a few weeks ago, modders figured out a way to make it work on older hardware, like the RX 7000 series and even Nvidia’s RTX 30 series. Now, it has also made its way to the Steam Deck thanks to a tool called Decky Framegen.
A Reddit user named Supershredderdan shared that the latest version of Decky Framegen now supports the INT8 version of FSR 4, along with the new OptiScaler 0.7.9 final release. This means Steam Deck owners can now “patch” their games, enable DLSS in the in-game settings, and then switch to FSR 4 inside the OptiScaler overlay. While FSR 4 is heavier on performance compared to FSR 3, it’s very usable and looks noticeably better.
Decky Framegen makes FSR 4 possible on Steam Deck
According to Supershredderdan, the setup isn’t too complicated. If you already have an older version of Decky Framegen, you just need to uninstall the OptiScaler mod, install the new version from the zip, clear any old patches, and then re-patch your game with the updated files. Once that’s done, you can open the in-game overlay and select FSR 4 as your upscaler. Some users reported needing special Proton versions in the past, but this latest release makes it work without extra steps in most cases.
Players are already testing it out. NightSightProductions, for example, tried FSR 4 in Cyberpunk 2077 on Steam Deck and saw a big jump in image quality compared to FSR 3. Colors looked more balanced, edges were cleaner, and the overall picture was sharper. It doesn’t magically fix performance drops, but it makes the game look far better while running at similar frame rates.
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