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.
Most users encounter this file due to "Missing DLL" or "Entry Point Not Found" errors. 1. "File Not Found" or Missing Error
It is often used to replace NVIDIA DLSS in games, allowing users with non-RTX graphics cards (including AMD and older NVIDIA cards) to gain similar performance benefits. ffx_fsr2_api_vk_x64.dll
: While ffx_fsr2_api_dx12_x64.dll handles DirectX 12, this specific "VK" version is used by games that utilize the Vulkan API, such as Red Dead Redemption 2 .
: This indicates that the DLL (Dynamic Link Library) is for 64-bit Windows systems. The "x64" notation refers to the AMD64 and Intel 64 architectures, which are the 64-bit versions of the x86 instruction set. This guide explains what this file is, why
is a dynamic link library file developed by AMD as part of their FidelityFX Super Resolution 2 (FSR 2) technology.
Run these commands as Administrator:
: It allows the game to render at a lower resolution and then intelligently upscale the image to your monitor's native resolution, significantly improving frame rates.