AMD has expanded the reach of its upscaling technology with the introduction of FidelityFX Super Resolution 4 (FSR 4), which is now compatible with most games that already support FSR 3.1 under DirectX 12. The announcement was made through the official driver release notes for AMD Software: Adrenalin Edition version 25.9.1.
The company explained that enabling the feature is relatively straightforward. Players using Radeon RX 9000 series graphics cards simply need to update their drivers and activate FSR 3.1 within supported titles. From there, the AMD Software: Adrenalin Edition application provides an additional toggle that allows users to override the in-game implementation with FSR 4. This approach effectively updates existing FSR 3.1 integrations to the newer version without requiring changes from the game developers themselves.
However, there are limitations to this functionality. The driver-based upgrade only works with games that use DirectX 12 and have incorporated the signed FSR 3.1 DLL in line with AMD’s developer guidelines. Titles that run on Vulkan or that rely on non-standard plug-ins for FSR 3.1 integration are not supported by this feature.
FidelityFX Super Resolution has evolved considerably since its introduction. The first iteration used spatial upscaling and sharpening techniques, while FSR 2 introduced temporal data and integrated anti-aliasing. FSR 3 built upon these foundations by adding frame generation and what AMD termed “native anti-aliasing.” With FSR 4, the company is now focused on maintaining compatibility and streamlining performance enhancements across a wide range of titles.
This update reinforces AMD’s push to provide its users with continuous improvements in image quality and performance scaling. While the underlying details of FSR 4’s refinements remain technically dense, the practical result for players is an easier upgrade path. Many existing titles that currently support FSR 3.1 under DirectX 12 will now see benefits from the newer version, with no action required from developers beyond the initial integration.
As upscaling technologies remain a core component of modern PC gaming performance, AMD’s approach with FSR 4 highlights an effort to bridge generational gaps and offer a smoother transition for players and studios alike.
