Glossary
FSR
FidelityFX Super Resolution — AMD's upscaling technology, open-source and cross-vendor. FSR 4 brings machine-learning upscaling competitive with DLSS on supported hardware.
FSR is AMD's answer to DLSS. Unlike DLSS, it runs on any modern GPU — AMD, NVIDIA, and Intel — and is open source.
Version differences
- FSR 1/2 — spatial and temporal upscaling, lower quality than DLSS.
- FSR 3 — added frame generation, comparable to DLSS 3.
- FSR 4 — ML-based, RDNA 4 only, closed the visual quality gap with DLSS 3 in most titles.
When to enable
At 4K with any modern AMD card, FSR Quality is essentially free performance. At 1440p, the visual hit is small and the fps gain is meaningful. At 1080p, FSR Quality starts to show softness, especially on text and fine textures.
Cross-compatibility
FSR works on NVIDIA cards (older RTX, GTX) where DLSS doesn't. That's its biggest practical advantage for the ~40% of gamers still on pre-RTX cards.
Where this matters
Categories that use fsr
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