Radeon RX 6600 XT vs Radeon 780M Graphics
Short answer: which is best?
Radeon RX 6600 XT is 52.3 % stronger than Radeon 780M Graphics. Radeon RX 6600 XT ranks #34 of 64 measured graphics cards at WhatFPS (4,231 GPU score over 1 verified runs). Radeon 780M Graphics ranks #45 of 64 measured graphics cards at WhatFPS (2,778 GPU score over 3 verified runs). The numbers are measured in 4 verified WhatFPS runs — not estimated, not self-reported.
Measured comparison
| Metric | Radeon RX 6600 XT | Radeon 780M Graphics |
|---|---|---|
| GPU score (the card's own performance) | 4,231 | 2,778 |
| Best rig (GAMING — whole PC) | 4,552 | 4,791 |
| Earth II (Vulkan) | 17.5 FPS | 18.1 FPS |
| Mission to Earth II (DX12) | 22.5 FPS | 14.1 FPS |
| Earth II Landing (DX12 Ultimate) | 20.4 FPS | 11.1 FPS |
| Supernova (DX11) | 23.7 FPS | 21.6 FPS |
| Memory bandwidth | 42 GB/s | 8 GB/s |
| VRAM | 8 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 Radeon RX 6600 XT · All measurements for Radeon 780M Graphics