OptiScaler Mod Brings AMD FSR 4 to DLSS and XeSS-Compatible Games

The open-source tool allows AMD's advanced upscaling technology to be used in unsupported titles, though it requires RDNA 4 GPUs and remains experimental.

OptiScaler enables AMD's FSR 4 upscaling technology in games that support Nvidia DLSS 2+ or Intel XeSS, broadening its compatibility.
FSR 4 is exclusive to AMD's RDNA 4-based Radeon RX 9070 and RX 9070 XT GPUs, and attempting to use it on older hardware can cause stability issues.
The tool also supports frame generation and latency reduction features, including integration with Nvidia Reflex technology via workarounds.
Cyberpunk 2077, which lacks official FSR 4 support, has shown significant performance improvements with OptiScaler, achieving over 60 FPS at 1440p with full path tracing on an RX 9070 XT.
OptiScaler's FSR 4 functionality is experimental, with potential bugs and quality artifacts, and it is not officially supported by AMD, Nvidia, or Intel.