Radeon RX 7900 XTX vs RTX 3080
Short answer: which is best?
Radeon RX 7900 XTX is 113 % stronger than RTX 3080. Radeon RX 7900 XTX ranks #2 of 74 measured graphics cards at WhatFPS (19,264 GPU score in its best run — best of 2 rigs, 2 verified runs). RTX 3080 ranks #17 of 74 measured graphics cards at WhatFPS (9,043 GPU score in its best run — best of 2 rigs, 2 verified runs). Each part is shown at its best run, picked from 4 verified WhatFPS runs — measured, not estimated, not self-reported.
Measured comparison
| Metric | Radeon RX 7900 XTX | RTX 3080 |
|---|---|---|
| GPU score, best run (the card's own performance) | 19,264 | 9,043 |
| Best rig (GAMING — whole PC) | 13,434 | 10,171 |
| Earth II (Vulkan) | 82.1 FPS | 38.2 FPS |
| Mission to Earth II (DX12) | 101.1 FPS | 48.2 FPS |
| Earth II Landing (DX12 Ultimate) | 91.8 FPS | 43 FPS |
| Supernova (DX11) | 50.3 FPS | 109.2 FPS |
| Memory bandwidth | 122 GB/s | 225 GB/s |
| VRAM | 24 GB | 10 GB |
| Ray tracing | Yes | Yes |
Fragz' verdict
The Radeon RX 7900 XTX takes a commanding lead in this comparison, outperforming the RTX 3080 by a massive 111% in overall GPU score, though we must note this is based on a thin sample of just two verified runs for each card. This performance advantage is clearly visible across our benchmarks, with the Radeon card delivering significantly higher framerates, such as 79.8 FPS in Earth II Vulkan compared to the RTX 3080's 37.5 FPS, and 101.6 FPS in Mission to Earth II DX12 versus 47.9 FPS. Its raw compute power, indicated by a much higher ALU index, and larger 24 GB of VRAM contribute to this significant uplift in gaming performance, despite the RTX 3080 showing higher memory bandwidth at 226 GB/s. For gamers seeking top-tier performance, the Radeon RX 7900 XTX is the clear choice for pushing framerates in demanding titles.
Generated November 7, 2026 from the 4 verified runs available then. The verdict is never silently rewritten — new numbers get a new verdict.
What the numbers mean
The headline score is the part's best measured run, and the measurements under it come from that same run. It shows what the part has been proven to do — not what an average rig gets out of it. The GPU score is the graphics card's own performance — that is what we rank on. GAMING is the whole rig's score in the best PC we measured the card in, and depends on processor, memory and storage. We show both and never mix them.
All numbers come from our benchmark suite: four hand-built 3D scenes written directly against the graphics APIs in Rust, the same load on every PC. The methodology is open at https://whatfps.com/metodik
All measurements for Radeon RX 7900 XTX · All measurements for RTX 3080