Many players encounter errors like vkGetPhysicalDeviceProperties2 missing in ffx_fsr2_api_x64.dll when trying to launch demanding games like Red Dead Redemption 2 or community-modded titles.
Avoid downloading DLL files from "DLL fixer" websites. These sites often host outdated or malicious files. The safest sources for this specific library are: Official game updates.
This comprehensive guide explains what this specific file does, why it trends in gaming forums, and how to fix common errors associated with it. What is the ffx_fsr2_api_vk_x64.dll File?
If you are using a mod to inject FSR 2 into a game (like the FidelityFx Super Resolution 2.0 mod for RDR2), ensure you have manually copied ffx_fsr2_api_vk_x64.dll
[ Game Engine Execution Loop ] │ ▼ [ Vulkan Graphics Pipeline ] ──(Render at Lower Resolution) │ ▼ [ ffx_fsr2_api_vk_x64.dll Injection/Call ] │ ┌─────────┴─────────┐ ▼ ▼ (Temporal Vectors) (Color Buffers) │ │ └─────────┬─────────┘ ▼ [ FSR 2.0 High-Resolution Output Frame ] Core Functions Contained in the DLL
Devices like the Steam Deck and various Windows-based handhelds rely heavily on the Vulkan API for performance efficiency. Optimizing or updating the ffx_fsr2_api_vk_x64.dll file in these ecosystems is a common trick to squeeze an extra 10 to 15 FPS out of demanding, modern AAA titles. How to Fix Common Errors Related to the File