Radeon RX 9070 XT vs RTX 4080
Short answer: which is best?
Radeon RX 9070 XT is 10.3 % stronger than RTX 4080. Radeon RX 9070 XT ranks #4 of 74 measured graphics cards at WhatFPS (16,038 GPU score in its best run — best of 4 rigs, 10 verified runs). RTX 4080 ranks #6 of 74 measured graphics cards at WhatFPS (14,537 GPU score in its best run — 1 rig, 5 verified runs). Each part is shown at its best run, picked from 15 verified WhatFPS runs — measured, not estimated, not self-reported.
Measured comparison
| Metric | Radeon RX 9070 XT | RTX 4080 |
|---|---|---|
| GPU score, best run (the card's own performance) | 16,038 | 14,537 |
| Best rig (GAMING — whole PC) | 12,063 | 14,765 |
| Earth II (Vulkan) | 66 FPS | 63.1 FPS |
| Mission to Earth II (DX12) | 86 FPS | 78.6 FPS |
| Earth II Landing (DX12 Ultimate) | 77.2 FPS | 67.1 FPS |
| Supernova (DX11) | 29.7 FPS | 135.9 FPS |
| Memory bandwidth | 109 GB/s | 238 GB/s |
| VRAM | 16 GB | 16 GB |
| Ray tracing | Yes | Yes |
Fragz' verdict
The RTX 4080 takes the win in this head-to-head, leading the Radeon RX 9070 XT by a solid 27.1% in overall GPU score. This performance advantage is most evident in DirectX 12 and DirectX 12 Ultimate titles, where the RTX 4080 delivered 77.9 FPS in Mission to Earth II and 67.3 FPS in Earth II Landing, significantly outperforming the Radeon's 53.8 FPS and 49.4 FPS. The RTX 4080 also features a higher raw compute with an ALU index of 539839 and greater memory bandwidth at 195 GB/s, compared to the Radeon's ALU index of 442372 and 106 GB/s. Although the Radeon RX 9070 XT showed a slight edge in Earth II Vulkan at 64.7 FPS, the RTX 4080's consistent lead across other benchmarks and higher rank of 4th makes it the stronger option for most gamers seeking top-tier performance.
Generated September 15, 2026 from the 15 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 9070 XT · All measurements for RTX 4080