RTX 4080 vs RTX 3080 Ti
Short answer: which is best?
RTX 4080 is 40.2 % stronger than RTX 3080 Ti. RTX 4080 ranks #5 of 43 measured graphics cards at WhatFPS (14,521 GPU score over 5 verified runs). RTX 3080 Ti ranks #10 of 43 measured graphics cards at WhatFPS (10,358 GPU score over 7 verified runs). The numbers are measured in 12 verified WhatFPS runs — not estimated, not self-reported.
Measured comparison
| Metric | RTX 4080 | RTX 3080 Ti |
|---|---|---|
| GPU score (the card's own performance) | 14,521 | 10,358 |
| Best rig (GAMING — whole PC) | 14,765 | 11,289 |
| Earth II (Vulkan) | 62.9 FPS | 42.4 FPS |
| Mission to Earth II (DX12) | 77.9 FPS | 53.7 FPS |
| Earth II Landing (DX12 Ultimate) | 67.3 FPS | 47.9 FPS |
| Supernova (DX11) | 106.1 FPS | 99.2 FPS |
| Memory bandwidth | 195 GB/s | 290 GB/s |
| VRAM | 16 GB | 12 GB |
| Ray tracing | Yes | Yes |
Fragz' verdict
The RTX 4080 is our clear winner in this comparison, leading the RTX 3080 Ti by 45.5% in GPU score, though it's important to note the 4080 has a thin sample of only two verified runs. This performance gap is evident across all our GPU benchmarks, with the RTX 4080 consistently delivering significantly higher frame rates; for instance, it hit 63.1 FPS in Earth II (Vulkan) compared to 42.6 FPS for the 3080 Ti, and 77.9 FPS in Mission to Earth II (DX12) against 52.2 FPS. The RTX 4080 achieves this with a much higher peak clock of 2880 MHz and greater raw compute, reflected by its ALU index of 694483, alongside a larger 16 GB of VRAM. While the RTX 4080 shows superior performance, the RTX 3080 Ti, with its 12 GB of VRAM and higher memory bandwidth of 290 GB/s, still offers solid gaming performance and has a much larger, more reliable sample size of verified runs.
Generated July 19, 2026 from the 12 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 4080 · All measurements for RTX 3080 Ti