AMD FidelityFX Super Resolution (FSR) is now a family of graphics features called FSR “Redstone,” not a single upscaling switch. It includes upscaling, frame generation, ray regeneration and radiance caching. Developers must integrate the relevant feature into a game, although some compatible games can receive newer FSR capabilities through AMD Software driver upgrades.
What AMD FSR Redstone includes
AMD describes FSR Redstone as a suite of machine-learning-powered features that game developers can implement to improve performance and visual effects. AMD has renamed FSR 4 to FSR Upscaling to distinguish it from the other features in the Redstone family. The new naming sits alongside versioned SDK components, so terms such as “FSR 3.1” and “FSR Upscaling” may both appear in developer and compatibility information.
- FSR Upscaling: reconstructs a higher-resolution image from a lower-resolution render. The ML-based version is supported on Radeon RX 7000 and RX 9000 Series graphics.
- FSR Frame Generation: generates additional frames. ML Frame Generation requires Radeon RX 9000 Series graphics; older analytical FSR 3 paths are distinct and depend on the game’s implementation.
- FSR Ray Regeneration: an ML feature for ray-traced rendering, requiring Radeon RX 9000 Series graphics.
- FSR Radiance Caching: a preview feature in the current SDK component list, intended to contribute to lighting and rendering workflows.
FSR is not a universal driver toggle that can add these features to any game. A title needs a native integration of the relevant FSR technology, or it must meet AMD’s requirements for a driver-level upgrade.
What is available in AMD’s GitHub SDK
AMD’s official FidelityFX-SDK repository is the practical place for developers to track code, samples and component releases. Its listed versions include both established analytical components and newer ML components:
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| SDK component | Listed version |
|---|---|
| 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 component versions, not a single version number for the whole Redstone family. GPUOpen describes SDK 2.3 as supporting DirectX 12 and an Unreal Engine 5 AMD FSR plugin. AMD’s integration approach also uses prebuilt, signed DLLs, which can let supported games receive some later ML features through AMD Software without each game shipping a separate new implementation.
Can an existing game get newer FSR through a driver?
Sometimes. AMD’s upgrade path depends on what the developer originally integrated and on the game meeting the supported-game requirements. AMD says games with a standard FSR 3.1 integration can become eligible for ML FSR Upscaling 4.1.1, while games with FSR 3.1.4 can become eligible for ML Frame Generation 4.0.1 through future Adrenalin driver releases. This is eligibility, not a guarantee that every qualifying game has already received an upgrade.
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For AMD’s listed ML upgrades, the stated requirements include a standard integration, DirectX 12, and the required base FSR version: at least FSR 3.1 for upscaling or FSR 3.1.4 for frame generation. AMD also specifies Windows 11 for frame generation. Its supported-games list can change as the company adds or revises compatibility.
This upgrade path does not make FSR available in a title with no compatible integration. Check AMD’s supported-games information for the particular game and feature rather than assuming that a GPU driver update alone is sufficient.
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Which graphics cards support FSR 4 and Redstone features?
Support depends on the feature, not just whether a card is branded Radeon or can run an older FSR release.
| Feature or path | Hardware support stated by AMD | Important qualification |
|---|---|---|
| ML FSR Upscaling | Radeon RX 7000 and RX 9000 Series | Game integration or an eligible driver upgrade is still required. |
| ML Frame Generation | Radeon RX 9000 Series | Driver upgrade eligibility requires a game with at least FSR 3.1.4, plus the other stated requirements. |
| Ray Regeneration | Radeon RX 9000 Series | Requires the relevant game support; it is not implied by upscaling support. |
| Analytical FSR 2/3 paths | Older Radeon generations and equivalent GPUs | Availability and behavior remain game-dependent; FSR 3/3.1 requires developer integration. |
Thus, Nvidia and other non-Radeon GPUs can use some older, analytically based FSR implementations when a game supports them. That should not be confused with support for AMD’s newer ML features, for which AMD specifies particular Radeon generations.
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Unreal Engine and Godot support
Unreal Engine 5
AMD provides an official FSR plugin for Unreal Engine 5 with upscaling and frame-generation support. Developers can use the plugin as an integration route, subject to the requirements of the particular FSR feature and project. An engine plugin does not automatically enable FSR in every game built with Unreal; the game developer still needs to integrate and configure it.
Godot
Godot’s documentation says built-in support for AMD FidelityFX Super Resolution 2.2 has been available since Godot 4.2. The documented support is in the Forward+ renderer and works with recent GPUs from any vendor. This is built-in support for FSR 2.2, not a statement that Godot includes every newer Redstone or ML feature.
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What changes for players—and what does not
For players, the main benefit of the expanded SDK and engine support is a clearer path for developers to adopt FSR features and, in some eligible games, for AMD to deliver later ML upgrades through drivers. It does not mean every game will expose every FSR option, or that one feature’s hardware support guarantees another’s.
Image quality also depends on the game’s implementation, render resolution and scene. Temporal reconstruction and frame generation can show artifacts such as ghosting in some circumstances; the presence of an FSR label alone does not establish a particular image-quality result. Check the game’s settings and compatibility listing, and compare the available options in the scenes you actually play.
AMD publishes performance examples for Radeon RX 9070 XT, including a 3.5x average performance claim for FSR Redstone and 4.7x FPS claims in examples involving Call of Duty: Black Ops 7 and Cyberpunk 2077. These are AMD’s claims, not independent benchmark results; the company’s page gives test-condition footnotes, so the figures should be read in the context of those specific conditions rather than as a general performance guarantee.
How developers can evaluate an FSR integration
- Choose the feature and baseline. Decide whether the game needs upscaling, frame generation, ray regeneration or radiance caching, and select a supported SDK component rather than treating “FSR” as one interchangeable effect.
- Check platform and hardware requirements. Confirm the API, operating-system and GPU requirements for the intended feature. For AMD’s listed driver upgrades, DirectX 12 and the required FSR 3.1 or 3.1.4 baseline matter; Windows 11 is specified for frame generation.
- Use the right engine path. Unreal Engine 5 developers can start with AMD’s official plugin. Godot developers can use its documented FSR 2.2 support in Forward+ when that older temporal upscaler suits the project.
- Validate behavior in-game. Test supported GPU classes, motion-heavy scenes and image-quality trade-offs. A successful build or SDK integration does not by itself establish that all hardware combinations or scenes produce the same result.
For developers, the GitHub SDK matters because it exposes the distinct components and release versions needed to plan an integration. For players, the decisive questions remain whether a particular game implements the desired feature and whether the player’s hardware meets that feature’s requirements.
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