FSR
AMD FidelityFX Super Resolution (FSR) is a type of rendering technique that looks to boost framerates in games and enable quality high-resolution gaming. It is an software upscaling technology, designed to improve the performance of games without loss of image quality and graphical detail.
It works by rendering frames at a lower resolution and then using an open-source spatial upscaling algorithm to make the game look as though it’s running at a higher resolution13. It is different from Nvidia’s DLSS, which uses machine learning and temporal upscaling to achieve similar results. FSR is part of AMD’s FidelityFX image toolkit and does not require specific training or special-purpose logic within the GPU.
AMD FidelityFX Super Resolution (FSR) scales across a broad spectrum of new and older products, including integrated graphics, and is optimized for AMD RDNA and AMD RDNA 2 architecture-based Radeon RX 6000 and RX 5000 Series graphics cards. FSR is also supported on select NVIDIA graphics cards.