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Note

The FSR4 compatibility list has now been merged into the General Compatibility List

GPUs

• FSR4 is currently officially supported only on AMD Radeon RX 7000 GPUs and higher (RDNA3 and RDNA4).
  • RDNA3 desktop GPUs (dGPUs) are officially supported, while RDNA3/3.5 mobile iGPUs/APUs are not yet
    • AMD has confirmed they're working on lighter models for iGPUs/APUs
  • According to a recent announcement by AMD, FSR4.1 will be supported on RDNA2 in early 2027.

APIs

• FSR4 doesn’t officially support Vulkan or DX11 yet.
  • Starting from OptiScaler 0.9, both can be used through a DX12 interop (select FSR3.X/4 w/Dx12 in Opti's upscaler dropdown menu).
    • As per Radeon Software, official Vulkan support should be coming in the future, at some point.
  • Linux currently doesn't support FSR4 VK w/Dx12 as Linux is missing some needed extensions
    • Fixed, requires Proton 11+ which adds the missing required Wine extensions, VK w/Dx12 should be working now, but needs more testing and might require extra bugfixes down the line
    • RADV may have a massive performance drop compared to AMDVLK (unrelated to OptiScaler) - Mesa issue link

Games

• Since AMD's 25.9.1 drivers, FSR4 can be globally injected through the AMD FSR4 Upscaling toggle in Adrenalin, adding theoretical support for all FSR3.1 DX12 games that use signed DLLs.
  • To browse AMD's list of 200+ games with FSR4 support, click here.
  • To browse OptiScaler's list of 600+ games with FSR4 support, click here.

Issues

• For already documented fixes and workarounds, check the general compatibility list first (game titles are hyperlinked if existing).
• For Luma Unreal Engine, check Luma UE.
• For Linux specific information, check FSR4 Linux Setup.

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Table of Contents

• FSR4 on Windows 10
• Image Quality
• Black artifacts with FSR4.0.1+ in some games
• FSR4 shimmering on UE DX11
• Linux Setup

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FSR4 on Windows 10

• PotatoOfDoom added experimental support for updating the DirectX 12 Agility SDK which should help games crashing on Windows 10 with FSR4.
  • Set FsrAgilitySDKUpgrade=true in OptiScaler.ini (make sure you have copied the D3D12_Optiscaler folder from the OptiScaler archive into the game folder).

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Image Quality

• If you have image quality issues, please try enabling the Non-Linear settings.
• FSR4 doesn't officially support Ultra Quality (UQ) preset and may exhibit broken rendering, white screen flashes, flickering, artifacting, etc in some games.
  • Either try the Non-Linear Color Space toggle or use a different preset.
    
• RDNA3 on Linux will have broken visuals unless this command is set: DXIL_SPIRV_CONFIG=wmma_rdna3_workaround
  • No longer required as of FSR 4.1.1+ as RDNA3 now officially supports FSR4 INT8.

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Fixed in FSR4.1+ Black artifacts with FSR4.0.1+ in some games

• There are black artifacts present at the top and bottom of the screen during movement, as demonstrated in the image.
• Seems to happen on some games when FSR 4.0.1+ uses a preset ratio above Quality (1.5), meaning Native AA (1.0) or Ultra Quality (1.3) may cause this issue.
• Known affected games: Horizon Forbidden West, Cyberpunk 2077, STALKER 2, STAR WARS Jedi: Survivor.
  Workaround:
  • Switch to a preset like Quality or lower.
    or
  • Download the FSR4.0.0 amdxcffx64.dll file and place it in the game folder. OptiScaler will use the local 4.0.0 DLL instead of the global driver's FSR4 for that particular game.
    • To downgrade back to FSR 4.0.0 on OptiScaler 0.7.9+, you'll also have to remove the amd_fidelityfx_upscaler_dx12.dll and amd_fidelityfx_framegeneration_dx12.dll files from the OptiScaler archive and paste the FSR3.1.4 file from the FFX 1.1.4 SDK/OptiScaler 0.7.8 before pasting the FSR4.0.0 amdxcffx64.dll.

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FSR4 shimmering on UE DX11

• Shimmering seems to be related to dilated motion vectors when using DLSS inputs in a DX11 Unreal Engine game.
• To disable dilated motion vectors, add the following lines into the game's Engine.ini file:

[SystemSettings]
r.NGX.DLSS.DilateMotionVectors=0  

• Check PCGamingWiki in the Configuration file(s) location section to find out where your game's respective Engine.ini file exists.
  • If it doesn't exist, you'll have to create it and make it Read-only if the game deletes it on boot.
• If you're using Native AA (1.0 scaling), you can disable Display Res. MV under Advanced Init Flags in OptiScaler overlay without editing the Engine.ini file.

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Linux Setup

• FSR 4.1.1 requires up-to-date Proton which contains the latest VKD3D, which added FSR 4.1.1/FFX 2.3 SDK support in order to work
• Also requires Mesa 25.2+ for FSR4-FG to work and setting Proton prefix to Windows 11 with Winecfg (might require per-game)
  • To downgrade back to FSR 4.0.0 on OptiScaler 0.7.9+, you'll also have to remove the amd_fidelityfx_upscaler_dx12.dll and amd_fidelityfx_framegeneration_dx12.dll files from the OptiScaler archive and paste the FSR3.1.4 file from the FFX 1.1.4 SDK/OptiScaler 0.7.8 before pasting the FSR4.0.0 amdxcffx64.dll.

Setup guide is for Linux Proton with FSR4

• Use ProtonUp-QT or similar to download and install a supported version of Proton for Steam games. When installing a new version with Steam, make sure that Steam is closed or restart Steam to access the installed version.
• Grab one of the following:
  • Proton-EM 10.0-2D+
  • Proton-GE 10.4+
  • proton-cachyos 10.0-20250623+
  • Steam Proton Experimental Bleeding Edge
• Extract the Proton into ~/.local/share/Steam/compatibilitytools.d/, then either set this Proton globally in Steam as default or manually set game to use it.
• Env Vars/Settings (e.g Steam Launch Options)
  RDNA4 / RDNA3: PROTON_FSR4_UPGRADE=1
  RDNA3: PROTON_FSR4_UPGRADE=1 + DXIL_SPIRV_CONFIG=wmma_rdna3_workaround, and in OptiScaler.ini setFsr4Update=true
• Make sure to be on Mesa 25.2.0 or newer.
• Setup OptiScaler as usual and all should work. :)