AMD has confirmed that the FSR Redstone scaling technology will work not only on Radeon graphics cards. As the company's Director of Software Development, Chris Hall, said in an interview with the Japanese publication 4Gamer, the new version is being created with an emphasis on versatility and does not require tensor cores or specialized AI blocks.
Redstone is based on ML2CODE — a component of the ROCm stack that converts trained neural networks into optimized shader code (HLSL for DirectX and GLSL for Vulkan). This code can be executed on any GPU that supports modern graphics APIs. This implies FSR Redstone compatibility not only with Radeon, but also with NVIDIA GeForce and Intel Arc graphics cards.
The technology will even be able to work on older graphics cards, albeit with less efficiency. This approach will simplify the integration of upscaling into games and make it accessible to the widest possible audience.