A important change spotted in the latest version of AMD's ADLX developer kit directly affects gamers. A driver-level FSR4 Frame Generation override mechanism has been added, allowing games that support FSR 3.1 to automatically upgrade to the more advanced machine-learning-based frame generation technology.
Alongside this, signs in the SDK indicate the current 2x generation rate is not the ceiling. Code for adjusting frame ratio suggests potential 4x and 6x modes. Switching is expected to work similarly to an upscaling update via the driver, without requiring game developer intervention.
This approach offers a free upgrade path for existing titles. Owners of less powerful AMD GPUs stand to benefit most, as smoother and better image quality is crucial for them.
Compared to competitors, whose technologies already achieve up to 6x FPS boosts, the current FSR capabilities appear modest. Given past issues with unstable frame rates, adding new multipliers is a logical step to strengthen AMD's position.
The feature, technically named IADLX3DFidelityFXFrameGenUpgrade, not only updates the frame generation type but also sets the ratio via specific parameters. The SDK currently only includes 2x, but the structure clearly indicates expansion plans.
The timeline for the new modes is undisclosed, but their presence in developer tools suggests AMD is preparing the next phase of FSR4.