This guide explains what this file is, why games need it, and what to do if your system reports it missing, crashing, or failing to load. ffx_fsr2_api_vk_x64.dll is a dynamic link library file developed by AMD as part of their FidelityFX Super Resolution 2 (FSR 2) technology.
If you’ve been diving into recent PC games (especially those using Vulkan graphics API), you might have encountered the file ffx_fsr2_api_vk_x64.dll — either sitting in your game folder or triggering an error message. ffx_fsr2_api_vk_x64.dll
If you’re a modder or developer working with Vulkan + FSR 2, ensure you’re distributing the correct version of the AMD FidelityFX SDK alongside your project. Check the specific game’s forums or AMD’s official FSR 2 documentation. This guide explains what this file is, why