Radeon RX 6800 XT vs Arc B580 Graphics
Short answer: which is best?
Radeon RX 6800 XT is 58.9 % stronger than Arc B580 Graphics. Radeon RX 6800 XT ranks #13 of 43 measured graphics cards at WhatFPS (8,241 GPU score over 1 verified runs). Arc B580 Graphics ranks #20 of 43 measured graphics cards at WhatFPS (5,187 GPU score over 1 verified runs). The numbers are measured in 2 verified WhatFPS runs — not estimated, not self-reported.
Measured comparison
| Metric | Radeon RX 6800 XT | Arc B580 Graphics |
|---|---|---|
| GPU score (the card's own performance) | 8,241 | 5,187 |
| Best rig (GAMING — whole PC) | 6,746 | 5,621 |
| Earth II (Vulkan) | 32.8 FPS | 22.9 FPS |
| Mission to Earth II (DX12) | 44.4 FPS | 29.8 FPS |
| Earth II Landing (DX12 Ultimate) | 40.4 FPS | 22.7 FPS |
| Supernova (DX11) | 21.2 FPS | 11.7 FPS |
| Memory bandwidth | 67 GB/s | 64 GB/s |
| VRAM | 16 GB | 12 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 Radeon RX 6800 XT · All measurements for Arc B580 Graphics