Radeon Tuner Unlocks FSR 4.1.1 Hidden in AMD Adrenalin Software for Unsupported Integrated Graphics

AMD officially announced FSR 4.1.1 for its RX 7000 series graphics cards, though it doesn't seem to apply to RDNA 3 or RDNA 3.5 APUs in handhelds and mini PCs. While the feature is not available in AMD Software, tests indicate that driver support may already be in place, but just not through the regular interface.

We tried going to the Graphics Tab of AMD Adrenalin Software and noticed that FSR Upscaling Override was missing in a Ryzen AI Max 395+ equipped with Ryzen 860S graphics. AMD has already announced that FSR 4.1.1 will only run on RX 7000 GPUs, with a lighter version of FSR in the works for APUs and handhelds.

Radeon Tuner Unlocks the Hidden FSR Override

This prompted us to ask whether it was already there but had been turned off by AMD Software in the driver. To check this out, we downloaded Radeon Tuner from GitHub. Many of the same capabilities are offered to the driver as are seen in Adrenalin, such as FSR Override. Once the app started, the experimental settings were enabled.

That also exposed a few driver options, though not officially yet, including Multi-Frame Generation, FSR Ray Regeneration Denoiser Override, and FSR Neural Radiance Caching Override. When the driver itself is to blame, then you might be able to use official FSR 4.1.1, where DLL swapping or something like OptiScaler isn't possible, such as in online games that do not allow for modification or that don't even offer FSR at all.

In addition, we tested the latest FidelityFX SDK by swapping out all of the game's DLLs with the most recent version of FSR 4.1.1. It is the same with OptiScaler: supported games can be launched, but many online games either won't launch or completely deny its use. The limitations were removed in this case; however, the FSR Override setting in Radeon Tuner replaced the driver-driven implementation with modified game files.

Advances and Shortfalls in Image Quality

The 1080p setting in FSR Performance mode for Marvel's Spider-Man 2 causes the game to render at a very low internal resolution. That upscale level typically creates many artifacts, but in this case, it seems closer to the FSR 4.1.1 upscale. There were not a great many artifacts visible in most of the image, although in this case, the shadows, translucent surfaces, reflections, and certain floor textures did shimmer.

Converted to Quality mode to increase image clarity and to minimize many of those problems. The problems were the same as those that we experienced with official FSR 4.1.1 - DLL swapping. The behavior indicates that both methods produce the same artifacts, so it's likely the driver is running FSR 4.1.1, not just a new name for FSR 3.1.5.

The remaining issues appear to be visual, which is why FSR 4.1.1 remains unofficially supported for RDNA 3 and RDNA 3.5 APUs. The driver appears to run the technology, but it still has a way to go before it's optimized for integrated graphics. As AMD mentioned, a lighter FSR 4 model is planned for APUs and handheld devices. That version may help to minimize these artifacts in the image, while preserving performance on graphics hardware integrated into the processor.

Forza Horizon 6 is not the only game exhibiting such behavior.

The same was done in Forza Horizon 6. Running at 1080p with Ultra Performance mode produced poor picture quality due to a very low internal resolution. Once in the game, switching to Quality mode restored image clarity, and the FSR 4.1.1 setting remained in the game's settings.

There were also some shimmering and shadow artifacts, but they seemed to be confined to specific areas rather than spread across the image. Typically, under normal conditions, such settings would create much more noticeable instability throughout the picture (FSR 3.1.5). Based on the current results, it appears that the official FSR 4.1.1 is running. Current results indicate that the official FSR 4.1.1 is running.

Based on the tests, it appears that the behavior is not that of FSR 3.1.5 but rather that of FSR 4.1.1, with a changed label. The same visual problems seen with DLL swapping and the driver-based override suggest real FSR 4.1.1 support, but it just hasn't been completed for RDNA 3 and RDNA 3.5 APUs.

For those who'd like to try for themselves on their own handheld or mini PC, you can download Radeon Tuner, go into its menu, and set the FSR Upscaling Override option and play supported games for yourself. It's already a working feature,, and its image quality performance is still subject to the ongoing state of AMD's integrated RDNA 3 graphics driver support.