AMD has announced that FidelityFX Super Resolution (often abbreviated to FSR) will be available on 22 June 2021. FSR is an open-source technology that can render high-resolution frames from lower resolution inputs. According to AMD “it uses a collection of cutting-edge algorithms with a particular emphasis on creating high-quality edges, giving large performance improvements compared to rendering at native resolution directly. FSR enables “practical performance” for costly render operations, such as hardware ray tracing.”
AMD’s FidelityFX competes with NVIDIA’s DLSS which is currently available in Unreal Engine and coming soon to Unity, although a significant difference is that FidelityFX is not limited to AMD cards, as it will also work with Geforce 10xx and above.