RTX 3090 vs Radeon RX 6800 XT
Short answer: which is best?
RTX 3090 is 34.7 % stronger than Radeon RX 6800 XT. RTX 3090 ranks #15 of 67 measured graphics cards at WhatFPS (10,341 GPU score over 3 verified runs). Radeon RX 6800 XT ranks #20 of 67 measured graphics cards at WhatFPS (7,677 GPU score over 2 verified runs). The numbers are measured in 5 verified WhatFPS runs — not estimated, not self-reported.
Measured comparison
| Metric | RTX 3090 | Radeon RX 6800 XT |
|---|---|---|
| GPU score (the card's own performance) | 10,341 | 7,677 |
| Best rig (GAMING — whole PC) | 10,212 | 7,023 |
| Earth II (Vulkan) | 43.5 FPS | 30.9 FPS |
| Mission to Earth II (DX12) | 55.5 FPS | 40 FPS |
| Earth II Landing (DX12 Ultimate) | 49 FPS | 38.2 FPS |
| Supernova (DX11) | 117.2 FPS | 23.4 FPS |
| Memory bandwidth | 199 GB/s | 67 GB/s |
| VRAM | 24 GB | 16 GB |
| Ray tracing | Yes | Yes |
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 3090 · All measurements for Radeon RX 6800 XT