Download AMD FidelityFX SDK 2.0 and FSR 4.0.2: Next-Gen Neural Rendering Technologies and FSR Redstone for Developers

AMD has officially unveiled its FidelityFX SDK 2.0, featuring the much-anticipated FidelityFX Super Resolution 4 (FSR 4), designed to empower developers with the latest in neural rendering technologies alongside the innovative FSR Redstone. This significant release aims to enhance the gaming experience substantially.

Overview of AMD’s FidelityFX SDK 2.0 Launch

During the highly regarded Gamescom 2025 event, AMD showcased the enhancements made to its FidelityFX suite with the rollout of version 2.0. This update grants developers access to cutting-edge features, including machine learning (ML)-based neural rendering technology and FSR Redstone, facilitating seamless integration into gaming environments.

AMD FSR Redstone AI enhances graphics with path tracing, radiance caching, and super resolution.

Key Features of FidelityFX SDK 2.0

The following key updates have been introduced in the FidelityFX SDK 2.0:

The existing FidelityFX SDK features will remain available as v1.1.4 to ensure compatibility while transitioning to the new FSR Redstone and other ML-based technologies.
The SDK now includes a restructured suite of features that encompasses AMD FSR 4 upscaling and FSR 3.1.5 analytical frame generation, optimized for next-gen AMD hardware.
Future releases of AMD Software: Adrenalin Edition will enable automatic updates for ML-based technologies within games, allowing players to utilize the latest advancements without needing to update each title individually:
- Titles that previously incorporated AMD FSR 3.1 and later versions can seamlessly upgrade to FSR 4’s upscaling technology with forthcoming updates.
- Games using FSR 3.1.4 will automatically transition to the new FSR ML Frame Generation technology through future driver releases.
The newly available FSR 3.1.5 provides minor enhancements specifically targeting AMD Radeon RX 7000 Series graphics cards and earlier models.

For those interested, you can download the SDK v2 package here, access the FSR 4 Documentation here, and explore the SDK on GitHub here.

Enhanced FSR 4.0.2 Features

Additionally, AMD has introduced its cutting-edge FSR 4.0.2 in GPUOpen. This version offers developers improved upscaling and frame-generation functionalities, significantly surpassing the performance of FSR 3. The enhancements include:

Minimized ghosting effects during object movement
Better retention of particle effects
Increased detail and stability over time
Streamlined API for easy upgrades
Support for Unreal Engine 5 plugins
Automatic updates for ease of use
Compatibility with various products

Illustrative Comparison: FSR 4 vs. FSR 3 Upscaling

For visual reference, here’s how FSR 4 and FSR 3 compare in terms of graphical fidelity:

FSR 4 in Horizon Forbidden West

Character near lush waterfall and mossy cliff in a vibrant natural landscape.

FSR 3 in Horizon Forbidden West

Character in armor kneels by majestic waterfall, lush greenery surrounds rocky cliffs.

Developers transitioning from FSR 3.1 to FSR 4 will find the process streamlined, as both versions utilize the same API structure. Moreover, FSR 4 will be available as pre-built, signed DLLs within the FidelityFX SDK 2.0, along with an Unreal Engine plugin for versions 5.1 to 5.6.

It’s important to note that to utilize AMD’s FidelityFX SDK 2.0 with FSR 4.0.2 upscaling, developers will need a Radeon RX 9000 Series GPU or newer. However, for those working with FSR 3.1.5 upscaling and frame-generation features, a GPU supporting Shader Model 6.2 or above is required. With these advancements, AMD inches closer to competing on equal footing with NVIDIA’s sophisticated neural rendering technologies.

Source & Images