RTX 5090 vs Radeon RX 7900 XTX
Short answer: which is best?
RTX 5090 is 49.9 % stronger than Radeon RX 7900 XTX. RTX 5090 ranks #1 of 43 measured graphics cards at WhatFPS (28,359 GPU score over 5 verified runs). Radeon RX 7900 XTX ranks #2 of 43 measured graphics cards at WhatFPS (18,924 GPU score over 2 verified runs). The numbers are measured in 7 verified WhatFPS runs — not estimated, not self-reported.
Measured comparison
| Metric | RTX 5090 | Radeon RX 7900 XTX |
|---|---|---|
| GPU score (the card's own performance) | 28,359 | 18,924 |
| Best rig (GAMING — whole PC) | 21,848 | 13,434 |
| Earth II (Vulkan) | 132.6 FPS | 79.8 FPS |
| Mission to Earth II (DX12) | 171.1 FPS | 101.6 FPS |
| Earth II Landing (DX12 Ultimate) | 112.4 FPS | 89.5 FPS |
| Supernova (DX11) | 112.8 FPS | 41.7 FPS |
| Memory bandwidth | 662 GB/s | 122 GB/s |
| VRAM | 31 GB | 24 GB |
| Ray tracing | Yes | Yes |
Fragz' verdict
The RTX 5090 takes a commanding lead in this showdown, outperforming the Radeon RX 7900 XTX by 47.9% in overall GPU score. It consistently delivers higher frame rates across all our test scenes, hitting 132.6 FPS in Earth II Vulkan and 171.1 FPS in Mission to Earth II DX12, compared to the Radeon's 79.8 FPS and 101.6 FPS respectively. This performance advantage is backed by a significantly higher raw compute with an ALU index of 1023444 and a massive memory bandwidth of 662 GB/s, alongside more VRAM at 31 GB. For gamers, this translates to a smoother, faster experience, especially at higher resolutions, though it's worth noting the Radeon RX 7900 XTX's data comes from a thin sample of only two verified runs. While the RTX 5090 is clearly the top performer here, the Radeon RX 7900 XTX still offers solid performance, ranking second overall in our database, making it a strong choice if its performance meets your needs.
Generated September 15, 2026 from the 7 verified runs available then. The verdict is never silently rewritten — new numbers get a new verdict.
What the numbers mean
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 RTX 5090 · All measurements for Radeon RX 7900 XTX