AMD FSR Redstone SDK Available For Download, Unreal Engine “Redstone” Plugin Also Available, Next-Gen “FSR” Features Hinted

AMD's FSR Redstone SDK is now available for download along with the latest Unreal Engine plug, helping devs integrate the latest FSR features in games.

AMD FSR Redstone SDK & Unreal Engine "FSR Redstone" Plugin Available For Download, Next-Gen Features Hinted

With the official unveiling of its FSR Redstone update, and the respective drivers that grant users the ability to try out the latest ML-based suite on their Radeon RX 9000 GPUs, AMD is also offering its FSR Redstone SDK to developers to help them integrate the latest features in current and upcoming games.

In addition to the FSR Redstone updates, AMD has also outlined what's next in line for AMD's FSR suite. The company has mentioned three crucial research papers that will help developers and their own teams to prepare for future graphics technologies. These research papers include:

• Neural Supersampling and Denoising (NSSD)
• Generative AI model for Global Illumination (GGI)
• AMD Dense Geometry Format (DGF)

Official Note: The AMD FSR SDK is our easy-to-integrate solution for developers looking to include FSR features in their games without any of the hassle of complicated porting procedures.

This minor revision to the SDK serves as the initial release of AMD FSR “Redstone” neural rendering technologies. We are pleased to present the public release for developers of:

• AMD FSR Upscaling 4.0.3
• AMD FSR Frame Generation 4.0
• AMD FSR Ray Regeneration 1.0
• AMD FSR Radiance Caching (Preview)

What’s changed?

The AMD FSR SDK 2.1 continues to build on changes introduced in our AMD FidelityFX SDK 2.0:

• With AMD FSR SDK 2.1 and AMD FSR “Redstone”, future AMD Software: Adrenalin Edition driver releases can update the version of ML-based technologies used in-game by default. This ensures players experience the latest available technology without requiring game updates for each title.
  • Games that have previously integrated AMD FidelityFX Super Resolution 3.1 and later are eligible for automatic version upgrades to AMD FSR Upscaling 4.0.3 via future AMD Software: Adrenalin Edition releases.
  • Games that have previously integrated AMD FidelityFX Frame Generation 3.1.4 will be eligible for automatic version upgrades to AMD FSR Frame Generation 4.0 via future AMD Software: Adrenalin Edition releases.

An updated Unreal Engine plugin is also available.

Updated: AMD FSR Upscaling 4.0.3

AMD FSR Upscaling is a cutting-edge upscaler that delivers significant image quality improvements over previous FSR generations. Our ML-powered upscaler (formerly AMD FidelityFX Super Resolution 4) uses neural networks to reconstruct visuals from lower-resolution frames that match or exceed native rendering quality, delivering a substantial boost in game performance.

Trained on high-quality game data using AMD Instinct GPUs, AMD FSR Upscaling leverages dedicated ML acceleration in AMD RDNA 4 architecture graphics cards for optimal performance. Backward compatibility is maintained through analytical upscaling paths, AMD FSR 3 for RDNA 3.5 architecture, and earlier hardware.

AMD FSR Upscaling delivers:

• Reduced ghosting on moving objects.
• Improved preservation of particle effects.
• Superior detail and temporal stability.

AMD FSR Upscaling v4.0.3 introduces our latest ML-based upscaling improvements and continued quality enhancements.

New: AMD FSR Frame Generation

AMD FSR Frame Generation is an advanced frame-generating solution that leverages state-of-the-art machine learning (ML) algorithms to generate high-quality intermediate frames from two consecutive source images, interpolating the motion of pixels between the start and end images. The neural approach significantly reduces artifacts common in analytical interpolation, such as ghosting and motion discontinuities.

Combined with AMD FSR Upscaling and AMD Radeon Anti-Lag 2, AMD FSR Frame Generation delivers a higher visual frame rate for ultra-smooth and ultra-responsive gameplay on AMD RDNA 4 architecture graphics cards. An analytical version of FSR Frame Generation (previously AMD FSR 3) is also included for backward compatibility with RDNA 3.5 architecture and older GPUs.

AMD FSR Frame Generation delivers:

• More accurate and higher-quality results using ML.
• Reduced artifacts compared to analytical interpolation.

New: AMD FSR Ray Regeneration

AMD FSR Ray Regeneration is a standalone, machine learning-powered real-time denoiser that integrates seamlessly with any game engine, enabling high-quality visuals by denoising inputs from ray-traced workloads.

Requiring AMD RDNA 4 architecture graphics, it works best when combined with other AMD FSR “Redstone” technologies to transform noisy outputs from ray tracing into a clean, coherent image.

AMD FSR Ray Regeneration delivers:

• Superior results compared to analytical denoising using ML.
• Decoupled denoising independent of upscaling.
• Optimal results when paired with AMD FSR Upscaling.

New: AMD FSR Radiance Caching

AMD FSR Radiance Caching is a state-of-the-art illumination cache designed to work in tandem with Monte Carlo path tracing to boost rendering performance. At its core is an online machine learning model that continuously trains on complex, multi-bounce global illumination (GI) on-device and in real-time.

The result is richer, more immersive lighting environments that respond dynamically without the need for pre-computation or baking.

AMD FSR Radiance Caching delivers:

• Efficient GI results with reduced computational costs.
• High-performance path tracing in games.

Requirements

Supported GPUs

• [AMD FSR Upscaling 4.0.3] AMD Radeon RX 9000 Series GPUs and above.
• [AMD FSR Frame Generation 4.0.0] AMD Radeon RX 9000 Series GPUs and above.
• [AMD FSR Ray Regeneration 1.0.0] AMD Radeon RX 9000 Series GPUs and above.
• [AMD FSR Radiance Caching 1.0.0] AMD Radeon RX 9000 Series GPUs and above.
• [AMD FidelityFX Super Resolution 3.1.5] GPUs supporting Shader Model 6.2 or above.
• [AMD FidelityFX Frame Generation 3.1.6] GPUs supporting Shader Model 6.2 or above.

Shading language

• [AMD FSR Upscaling 4.0.3] HLSL CS_6_4
• [AMD FSR Frame Generation 4.0.0] - HLSL CS_6_6†

† CS_6_6 requires DirectX 12 Agility SDK 1.4.9 or later.

Supported graphics APIs and Engines

• DirectX® 12.
• Unreal® Engine 5 FSR Upscaling/Frame Generation support

Supported OSs

• Windows 10
• Windows 11

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