AMD released version 2.2 of the FSR SDK this Monday, bringing significant updates to the neural rendering technologies of the Redstone package. The package now includes the FSR Upscaling in version 4.1 and the FSR Ray Regeneration in version 1.1, both with improvements focused on image quality and temporal stability.
These changes aim to bring upscaled rendering even closer to native quality, especially in scenes with intense movement. The SDK maintains compatibility with the full AMD ecosystem, including through fallback analytics modes for older cards.
Improvements in FSR Upscaling 4.1
The upscaling update to version 4.1 delivers visible gains in temporal stability. Fast-moving Objetos now has less smoothness or blurring compared to the previous version.
Fine elements like vegetation, detailed textures, and small geometry maintain greater sharpness and consistency across frames. Developers report that the reconstructed images come closer to native rendering without increasing the computational cost.
Advances in FSR Ray Regeneration 1.1
FSR Ray Regeneration has been updated to version 1.1, improving real-time processing of noisy data. Essa technology improves the depth of shadows, lighting accuracy, and overall clarity of ray-traced scenes.
Crimson Desert served as a demonstration title for the new capabilities, being the first game to integrate Ray Regeneration 1.1. The solution remains compatible with existing rendering pipelines, making it easier for studios to adopt.
- Improved temporal stability in fast movements
- Reduction of artifacts in fine elements and textures
- Increased clarity of shadows and ray traced lighting
- Optimization for RDNA 4 architecture with analytical fallback
Expanded support and compatibility
FSR SDK 2.2 maintains FSR Frame Generation in version 4.0 and includes Radiance Caching as a technical preview. Machine learning-based features are optimized for Radeon RX 9000 series cards with RDNA 4 architecture.
For older hardware, such as RDNA 3.5 and older generations, the SDK offers analytical modes equivalent to FSR 3, ensuring broad scalability. Support covers DirectX 12 and includes plugin for Unreal Engine 5, which simplifies integration into new projects.
Facilitation for developers
Binaries and limited source code are available on GitHub, while the complete package can be downloaded from GPUOpen. AMD plans to soon update the Unreal Engine 5 plugin to incorporate the FSR 4.1 improvements.
New visualization modes for debugging and gains in memory efficiency have also been added. Essas tools help professionals identify and correct problems during development.
Technical details and optimizations
Version 2.2 represents the first major update since the release of Redstone in December 2025. The improvements focus on reducing visual jitter without compromising performance.
The complete package allows games to scale fluidly across the entire AMD GPU lineup. Desenvolvedores can switch between ML-powered versions and analytical fallbacks depending on the target platform.
Practical integration into games
Studios that already use previous FSR technologies find the migration process relatively straightforward. Updated documentation provides guidance on necessary adjustments to reactive and transparency masks to achieve the best results.
The immediate availability of the SDK allows new titles to incorporate updated technologies from the earliest stages of production. Isso accelerates the delivery of experiences with greater visual quality and optimized performance.
FSR SDK 2.2 reinforces AMD’s commitment to providing affordable and powerful tools for the game development community. With these updates, the company seeks to raise the bar for real-time upscaling and ray tracing.