Switch emulators (Ryujinx, yuzu) use Vulkan. A portable FSR 2 DLL can be used to upscale 540p/720p Switch games to 1440p/4k with far better quality than simple bicubic or FSR 1 scalers.
The VK x64 DLL is a 64-bit library that provides the necessary functions and interfaces for the FFX FSR2 API to interact with the Vulkan graphics API. This library is responsible for handling tasks such as:
