AMD FidelityFX Super Resolution (FSR) is now a family of game-rendering features called FSR “Redstone,” not a single upscaling option. Developers can find the components and samples in AMD’s FidelityFX-SDK GitHub repository, while Unreal Engine 5 has an official AMD plugin and Godot has built-in FSR 2.2 support in its Forward+ renderer. For players, the key limitation is that a game must integrate FSR—or meet specific requirements for an AMD Software driver upgrade—before the feature can be used.
What is AMD FSR Redstone?
FSR is AMD’s set of technologies for improving rendering performance or visual effects in games. AMD now groups its current features under the name FSR “Redstone”: FSR Upscaling, FSR Frame Generation, FSR Ray Regeneration and FSR Radiance Caching. In AMD’s product documentation, FSR 4 has been renamed FSR Upscaling “to better distinguish between the various features that now make up FSR ‘Redstone’.”
The distinction matters because “FSR” no longer identifies just one technique. Upscaling reconstructs a higher-resolution image from a lower-resolution render; frame generation creates additional frames; ray regeneration and radiance caching address different parts of ray-traced rendering. A game may support one feature without supporting the others.
What is on AMD’s FidelityFX GitHub?
AMD’s official FidelityFX-SDK repository is the place developers can check current component versions and samples. The repository lists these components and versions:
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| Component | Version listed |
|---|---|
| FSR Temporal | 2.3.4 |
| FSR Upscaler | 3.1.5 |
| ML Upscaler | 4.1.1 |
| FSR Frame Generation | 3.1.6 |
| Frame Generation SwapChain | 3.1.7 |
| ML Frame Generation | 4.0.1 |
| Ray Regeneration | 1.2.0 |
| Radiance Caching | 0.9.0 preview |
These are versions of SDK components, not a promise that every game—or every FSR feature—supports them. GPUOpen describes SDK 2.3 as supporting DirectX 12 and an Unreal Engine 5 AMD FSR plugin.
Which game engines support FSR?
Unreal Engine 5
AMD provides an official FSR plugin for Unreal Engine 5, with upscaling and frame-generation support. Engine-plugin availability helps developers integrate the features, but a game studio still has to use the plugin and ship a compatible implementation.
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Godot
Godot’s 4.5 documentation says built-in support for AMD FidelityFX Super Resolution 2.2 has been available since Godot 4.2. It is available in the Forward+ renderer and works with recent GPUs from any vendor. This is support for FSR 2.2; it does not mean Godot’s built-in feature includes the newer Redstone ML features.
Which graphics cards support FSR 4 and Redstone?
Support depends on the feature, not just whether a card is branded Radeon. AMD states that ML-based FSR Upscaling is available on Radeon RX 7000 and RX 9000 Series graphics cards. ML Frame Generation and Ray Regeneration require Radeon RX 9000 Series hardware. Older Radeon generations and equivalent GPUs can use the analytical FSR 2/3 paths when a game supports them.
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| Feature or path | Hardware support stated by AMD | Important qualification |
|---|---|---|
| ML FSR Upscaling | Radeon RX 7000 and RX 9000 Series | Requires a compatible game integration or eligible driver upgrade. |
| ML Frame Generation | Radeon RX 9000 Series | Driver-upgrade eligibility requires a game integrated with FSR 3.1.4, plus the listed platform requirements. |
| Ray Regeneration | Radeon RX 9000 Series | Requires game support for the feature. |
| Analytical FSR 2/3 paths | Older Radeon generations and equivalent GPUs | Availability and implementation depend on the game. |
FSR is not exclusive to AMD GPUs in every form. Traditional FSR implementations can work on recent graphics hardware from other vendors, as Godot’s documentation notes for its built-in FSR 2.2 support. The RX 7000 and RX 9000 requirements above apply to AMD’s ML-based features, not to every feature carrying the FSR name.
Can you turn FSR on in any game?
No. Hardware alone cannot add FSR to every title. Ordinarily, the game must include and expose the relevant FSR integration. Some eligible games can receive newer ML features through AMD Software drivers, but this is a narrower compatibility path, not a universal driver switch.
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AMD’s supported-games requirements specify standard integration, DirectX 12, and a minimum integration version: at least FSR 3.1 for the ML upscaling upgrade, or FSR 3.1.4 for the ML frame-generation upgrade. The frame-generation path also requires Windows 11. AMD’s compatibility list can change as the company updates it.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How can a game receive an FSR driver upgrade?
AMD describes a system based on prebuilt, signed DLLs and an automatic upgrade path delivered through future Adrenalin driver releases. Under that design, eligible games do not have to be rebuilt to receive the newer ML feature, but their existing FSR integration still has to meet the specified threshold and platform requirements.
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- A game integrating FSR 3.1 can become eligible for ML FSR Upscaling 4.1.1.
- A game integrating FSR 3.1.4 can become eligible for ML Frame Generation 4.0.1.
“Can become eligible” is not the same as guaranteed support in every game. Check AMD’s current supported-games list for the title and feature in question; the game also needs the required API and, for ML frame generation, operating system.
What developers should take from the SDK and engine support
The GitHub SDK, Unreal plugin and Godot’s built-in FSR 2.2 support provide different starting points. Developers should choose the implementation that matches their engine, graphics API, target hardware and desired feature rather than treating Redstone as one drop-in package.
Quick Recap
- Use the FidelityFX-SDK repository to track component releases and samples.
- For Unreal Engine 5, AMD’s plugin covers upscaling and frame generation.
- For Godot, the documented built-in option is FSR 2.2 in Forward+, available from Godot 4.2 onward.
- Plan around the actual game integration: driver upgrades apply only to qualifying integrations, and newer ML features have stricter GPU requirements than analytical FSR 2/3 paths.
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