FSR (FidelityFX Super Resolution)
AMD's upscaling technology that boosts frame rates by rendering at lower resolution and reconstructing detail. FSR 4 uses AI on RDNA 4 hardware; older versions work on any GPU.
What is FSR?
FSR (FidelityFX Super Resolution) is AMD's answer to NVIDIA's DLSS. It renders games at a lower internal resolution and upscales to your target resolution, boosting frame rates while maintaining visual quality.
The key difference from DLSS: FSR 3.1 and earlier are algorithmic (not AI-based) and work on any GPU — NVIDIA, Intel, or AMD. FSR 4, introduced with RDNA 4, is a fully neural network-based upscaler that runs on AMD's dedicated AI accelerators.
Frequently Asked Questions
Is FSR as good as DLSS?
FSR 4 on RDNA 4 hardware is close to DLSS 4 in quality — the gap has narrowed significantly. FSR 3.1 (the version that works on any GPU) is noticeably behind DLSS in fine detail and temporal stability.
Can I use FSR on an NVIDIA GPU?
Yes. FSR 3.1 works on any GPU including NVIDIA cards. Many games offer both DLSS and FSR, so NVIDIA users should use DLSS when available (better quality on their hardware) and fall back to FSR in DLSS-unsupported titles.