AMD FSR SDK
AMD FSR™ SDK v2.4 is the launchpad for our ML-based FSR "Redstone" rendering technologies, inc. AMD FSR Upscaling, Frame Generation, Ray Regeneration, and Radiance Caching.
Neural rendering is transforming real-time graphics, and the AMD FSR™ “Redstone” SDK puts these capabilities directly in your hands. It combines machine learning (ML) with analytical fallback techniques to unlock new possibilities in upscaling, frame generation, ray tracing denoising, and lighting. By integrating AMD FSR features into your games, you can deliver enhanced performance and visual quality that scales across the AMD ecosystem, from handheld gaming devices and laptops to game consoles and desktop PCs, with a common SDK integration. AMD FSR SDK 2.4 extends that reach to more of your players, on more of the devices they play on.
AMD FSR™ 3.1 (Quality Mode) vs. FSR Upscaling 4.1 (Performance Mode) on an AMD Radeon™ RX 6800 XT at 4K Ultra settings in Crimson Desert by Pearl Abyss | Resized zoom of 4K capture | See endnote RX-1297
Today, we’re releasing AMD FSR “Redstone” SDK 2.4. In June, we extended ML-based AMD FSR Upscaling 4.1 to AMD Radeon™ RX 7000 Series GPUs. With this release, it now also runs on AMD Radeon RX 6000 Series (AMD RDNA™ 2 architecture) discrete GPUs, so more of your players on earlier-generation Radeon graphics cards will see its significant improvements in image quality. For the first time, FSR Upscaling 4.1 also comes to select AMD Ryzen™ processors with integrated Radeon graphics, found in gaming laptops, mini-PCs, and handheld gaming devices. AMD Ryzen AI Max processors run the full ML model, and a new lightweight model, built for more constrained integrated graphics, brings ML-based upscaling to thin-and-light laptops and handhelds.
The FSR SDK 2.4 also adds Vulkan® support at feature parity with DirectX® 12 for AMD FSR Upscaling and FSR Frame Generation (except for Intel® PresentMon reporting). FSR Frame Generation gains Driver-Assisted Frame Pacing on AMD Radeon RX 9000 Series GPUs, and AMD FSR Ray Regeneration adds standalone ambient and specular occlusion denoising.
AMD FSR™ Upscaling is our ML-powered upscaler. It uses neural networks to reconstruct visuals from lower-resolution frames, delivering a substantial boost in game performance together with the image quality improvements of AMD FSR Upscaling 4.1.
AMD FSR Upscaling 4.1.2 keeps the models already shipping on AMD Radeon™ RX 9000 Series (AMD RDNA™ 4 architecture, full FP8) and Radeon RX 7000 Series discrete (RDNA 3 architecture, full INT8) GPUs, and adds the full INT8 model on:
A second, highly optimized INT8 model brings ML-based FSR Upscaling to more constrained integrated graphics. That model is less than half the size of the full INT8 model and is purpose-built for this class of hardware:
Model selection is automatic and based on the target hardware. More capable integrated AMD Radeon 8000S Series GPUs in the Ryzen AI Max 300 and 400 Series run the full INT8 model. The other AMD Ryzen processors listed above run the lightweight INT8 model, tuned for a balance of image reconstruction quality and performance on laptops and handhelds. Results vary by game, resolution, quality mode, and hardware. AMD has focused on delivering a stable, broadly useful solution across all supported platforms.
AMD FSR™ 3.1 (Quality Mode) vs. FSR Upscaling 4.1 (Performance Mode) on an AMD Ryzen™ AI 9 HX 370 at 1080p Medium settings in Resonance: A Plague Tale Legacy by Asobo Studio | Resized 1.5x zoom of 1080p capture | See endnote RX-1299
Because integrated GPUs share system memory, APU upscaling performance can be affected by memory bandwidth as well as the processor’s power and thermal configuration. Reference timings for discrete GPUs and these Ryzen processors are available on the AMD FSR Upscaling product page.
AMD FSR Upscaling 4.1.2 also adds Vulkan® support at feature parity with the DirectX® 12 version. New APU support and Vulkan support are provided by the SDK DLLs you ship with your game, and do not require a specific driver version.
The AMD FSR™ SDK 2.4 is the first FSR “Redstone” release with Vulkan® support at feature parity with DirectX® 12 for the upscaling and frame generation effects:
Vulkan support is provided by the FSR SDK 2.4 DLLs, so it requires integrating this SDK into your game. Existing Vulkan games with AMD FidelityFX Super Resolution 3.1 upscaling or frame generation are not automatically upgraded to ML-based FSR Upscaling or FSR Frame Generation through the driver, as those upgrades apply to DirectX 12 games only. Vulkan games that integrate AMD FSR Upscaling 4.1.2, FSR Frame Generation 4.0.2, or FSR Frame Generation (Swapchain) 4.0.0 or later are eligible for automatic upgrades to future versions through AMD Software: Adrenalin Edition™.
On Vulkan, the frame generation swapchain replaces the application’s VkSwapchainKHR and returns replacement function pointers for swapchain creation, image acquire, and present.
Samples in this SDK run on Vulkan 1.2. AMD FSR Ray Regeneration and AMD FSR Radiance Caching remain DirectX 12 effects in this release.
AMD FSR™ Frame Generation generates intermediate frames so gameplay can be presented at a higher visual frame rate. The swapchain implementation dispatches that work and paces presentation. On DirectX® 12 it implements IDXGISwapChain4. On Vulkan® it replaces VkSwapchainKHR.
Starting with Frame Generation (Swapchain) 4.0.0, final presentation timing can be delegated to the AMD display driver. Driver-Assisted Frame Pacing schedules the present closer to the display pipeline than a user-mode busy wait, which produces smoother frame delivery and lower CPU overhead. It is selected automatically when all of the following are met, and your game does not need to opt in:
OverrideSwapChainDX12 set to true.
When any of those requirements is unmet, the swapchain continues to use its existing pacing path. For the best experience we recommend Windows® 11 with Hardware-accelerated GPU Scheduling enabled. That is the configuration Driver-Assisted Frame Pacing is validated against. Pacing quality on other operating system and scheduling configurations can fall back to the existing pacing path. Driver-Assisted Frame Pacing is supported on both DirectX 12 and Vulkan.
AMD FSR™ Upscaling 4.1 (Quality Mode) + AMD FSR™ Frame Generation on an AMD Radeon RX 9070 XT at 4K Ultra High settings in Assassin’s Creed Black Flag Resynced by Ubisoft | See endnote RX-1301
Eligible games integrated with AMD FSR SDK 2.1 or later, or with AMD FidelityFX™ Super Resolution Frame Generation (Swapchain) 3.1.6 or later, may receive FSR Frame Generation (Swapchain) 4.0.0 through automatic driver override when the title uses the supported swapchain-presentation path and has not disabled the override. On other GPUs, the AMD FSR API uses FidelityFX Super Resolution Frame Generation (Swapchain) 3.1.7.
Note: Driver-Assisted Frame Pacing applies when frame generation is dispatched during swapchain presentation. If the AMD FSR Unreal Engine plugin is configured to dispatch frame generation manually, it will keep the existing pacing path.
On DirectX 12, Swapchain 4.0.0 also reports the type of each presented frame so performance tools built on Intel® PresentMon can distinguish generated frames from application-rendered frames. Reporting is set up when the swapchain context is created and needs no application changes. Current Intel PresentMon releases report these frames as Unknown. Intel PresentMon integration is DirectX 12 only.
AMD FSR™ Frame Generation is the ML frame generation provider for AMD Radeon™ RX 9000 Series GPUs and later. This update adds Vulkan® support at feature parity with DirectX® 12 and fixes Vulkan validation errors and swapchain ABI safety issues.
AMD FSR Frame Generation 4.0.2 still requires Windows® 11. The call order is mandatory: ffxConfigure with ffxConfigureDescFrameGeneration, then ffxDispatch with ffxDispatchDescFrameGenerationPrepareV2, then ffxDispatch with ffxDispatchDescFrameGeneration. Calling these out of order can produce incorrect rendering and blocks future automatic driver upgrades.
AMD FidelityFX™ Super Resolution 3.1.6 is the analytical upscaler used where ML-based AMD FSR Upscaling 4.1 is unavailable. The 3.1.6 update increases precision and refines reprojection in the accumulate pass and adds Vulkan® support at feature parity with DirectX® 12.
AMD FidelityFX Super Resolution Frame Generation 3.1.6 and Frame Generation (Swapchain) 3.1.7 also gain Vulkan support at feature parity with their DirectX 12 versions. Swapchain 3.1.7 remains the version the API selects when Frame Generation (Swapchain) 4.0.0’s AMD Radeon™ RX 9000 Series GPU requirement is unmet.
AMD FSR™ Ray Regeneration is an ML denoiser for ray-traced workloads on AMD Radeon™ RX 9000 Series GPUs and later. Version 1.2.1 supports standalone ambient occlusion denoising and standalone specular occlusion denoising.
The update also corrects GPU memory usage queries. Querying memory usage after context creation now returns the right figure and querying it before context creation includes shader-visible descriptors. FFX_DENOISER_DISPATCH_NON_ENCODED_ALBEDO is added as an alias for FFX_DENOISER_DISPATCH_NON_GAMMA_ALBEDO. The FFX_DENOISER_DISPATCH_NON_GAMMA_ALBEDO name is deprecated and will be removed in a future release.
A few and driver behaviors change for every effect:
ffxConfigureDescGlobalDebug1 is deprecated. Use ffxConfigureDescGlobalDebug instead.
Driver-provided effect versions remain available through ffxQueryDescGetVersions. A driver-provided entry has a trailing * on its version name, for example FSR 4.1.2 *, and bit 31 set on its version id. When the application does not supply ffxOverrideVersion, the API selects the newest implementation and prefers a driver-provided version only when that version is strictly higher than the newest version shipped with the application. Supplying ffxOverrideVersion pins the context to that exact version id.
The AMD FSR™ “Redstone” SDK 2.4 is available now. With a single integration, ML-based AMD FSR Upscaling 4.1.2 now runs on AMD Radeon™ RX 9000, 7000, and 6000 Series (AMD RDNA™ 4, RDNA 3, and RDNA 2 architecture) discrete GPUs and on select AMD Ryzen™ processors (see Requirements section below). On AMD Radeon RX 9000 Series GPUs, the SDK also delivers FSR Frame Generation 4.0.2, FSR Frame Generation (Swapchain) 4.0.0 with Driver-Assisted Frame Pacing, and FSR Ray Regeneration 1.2.1. Analytical fallbacks remain available for other GPUs, and FSR upscaling and frame generation now support Vulkan® at parity with DirectX® 12.
Download the FSR “Redstone” SDK 2.4 today and bring the latest AMD FSR technologies to more of your players, on more of the devices they play on.
AMD FSR SDK 2.4 binaries and limited source are now available on [**GitHub**](https://github.com/GPUOpen-LibrariesAndSDKs/FidelityFX-SDK).
Check out our extensive [**AMD FSR SDK documentation**](https://gpuopen.com/manuals/fsr_sdk/).
Make sure you visit our [**AMD FSR SDK**](https://gpuopen.com/amd-fsr-sdk/) home page here on GPUOpen.
Review our [**AMD FSR naming guidelines**](https://gpuopen.com/amd-fsr-naming-guidelines/).
Sign up to our [**AMD Developer Newsletter**](https://www.amd.com/en/forms/sign-up/developer-news.html) for the latest updates.
Do you have feature requests, or have you found issues with the SDK? Please get in touch with your AMD representative or join the AMD Developer Community on Discord or Discourse to connect with fellow developers and AMD staff to discuss and provide feedback for this release.
You can also connect with us on social media at @GPUOpen on X, ** gpuopen.bsky.social on Bluesky**, or ** mastodon.gamedev.place/@gpuopen on Mastodon**.
All requests and feedback are very valuable to us, and we will review all feedback and respond whenever possible.
† Shader Model 6.6 support requires DirectX® 12 Agility SDK 1.4.9 or later. Vulkan® uses SPIR-V 1.5.
Testing as of October 2026 by AMD Performance Labs on a test system configured with AMD Ryzen™ 7 9800X3D, 32GB DDR5-6000, X870E, and AMD Radeon™ RX 6800 XT (Driver 26.10.1) with AMD FSR™ Upscaling 4.1 (Performance Mode + Frame Generation) vs a similarly configured system with AMD FSR™ Upscaling 3.1 (Quality Mode + Frame Generation) in Crimson Desert at 4K Ultra Settings. System manufacturers may vary configurations, yielding different results. RX-1297.
Testing as of October 2026 by AMD Performance Labs on a test system configured with AMD Ryzen™ AI 9 HX 370 (Asus Zenbook S16 – 32GB LPDDR5-7500, Driver 26.10.1, Asus Full Speed Mode, Windows Best Performance Mode) with AMD FSR™ Upscaling 4.1 (Performance Mode + Frame Generation) vs a similarly configured system with AMD FSR™ Upscaling 3.1 (Quality Mode + Frame Generation) in Resonance: A Plague Tale Legacy at 1080p Medium Settings. System manufacturers may vary configurations, yielding different results. RX-1299.
Testing as of October 2026 by AMD Performance Labs on a test system configured with AMD Ryzen™ 7 7800X3D, AMD Radeon™ RX 9070 XT, B650E motherboard, 32GB DDR5-6000, Windows 11 Pro, Driver 26.9.2 and 26.10.1 with AMD FSR™ Upscaling 4.1 Quality Mode + AMD FSR™ Frame Generation in Assassin’s Creed Black Flag Resynced Benchmark at 4K Ultra High Settings, RT Extended Mode. System manufacturers may vary configurations, yielding different results. RX-1301.
Assassin’s Creed Black Flag Resynced © 2026 Ubisoft Entertainment. All Rights Reserved. Assassin’s Creed, Black Flag, Ubisoft, and the Ubisoft logo are registered or unregistered trademarks of Ubisoft Entertainment in the US and/or other countries. Developed and published by Ubisoft.
Crimson Desert © 2025-2026 Pearl Abyss Corp. Crimson Desert is a trademark of Pearl Abyss. All rights reserved.
Intel is a trademark of Intel Corporation.
© 2026 Resonance: A Plague Tale Legacy, a game developed by Asobo Studio and published by Focus Entertainment. Resonance: A Plague Tale Legacy, Focus Entertainment and its logo are trademarks, registered trademarks or pending trademark applications of Focus Entertainment. The game and technology are the property of Asobo Studio. All rights reserved.
DirectX and Windows are trademarks of the Microsoft group of companies.
Vulkan and the Vulkan logo are registered trademarks of the Khronos Group Inc.
Unreal® is a trademark or registered trademark of Epic Games, Inc. in the United States of America and elsewhere.