RTX 5090 vs GTX 1080 Ti
Short answer: which is best?
RTX 5090 is 752 % stronger than GTX 1080 Ti. RTX 5090 ranks #1 of 67 measured graphics cards at WhatFPS (28,389 GPU score over 6 verified runs). GTX 1080 Ti ranks #41 of 67 measured graphics cards at WhatFPS (3,332 GPU score over 5 verified runs). The numbers are measured in 11 verified WhatFPS runs — not estimated, not self-reported.
Measured comparison
| Metric | RTX 5090 | GTX 1080 Ti |
|---|---|---|
| GPU score (the card's own performance) | 28,389 | 3,332 |
| Best rig (GAMING — whole PC) | 21,848 | 4,948 |
| Earth II (Vulkan) | 134.1 FPS | 19.9 FPS |
| Mission to Earth II (DX12) | 174.4 FPS | 23.8 FPS |
| Earth II Landing (DX12 Ultimate) | 113.8 FPS | 21.5 FPS |
| Supernova (DX11) | 115.2 FPS | 88 FPS |
| Memory bandwidth | 698 GB/s | 80 GB/s |
| VRAM | 31 GB | 11 GB |
| Ray tracing | Yes | Not supported |
Fragz' verdict
The RTX 5090 decisively takes the win in this comparison, outperforming the GTX 1080 Ti by a staggering 750.1% in overall GPU score. This massive lead is evident across all our GPU benchmarks, with the RTX 5090 delivering vastly superior framerates: 132.8 FPS in Earth II Vulkan compared to 19.7 FPS, 171.4 FPS in Mission to Earth II DX12 versus 23.6 FPS, and 113 FPS in Earth II Landing DX12 Ultimate against 21.5 FPS. The RTX 5090 also boasts significantly higher raw compute with an ALU index of 1020560, a memory bandwidth of 660 GB/s, and 31 GB of VRAM, alongside support for modern features like ray tracing, mesh shaders, and VRS, which the GTX 1080 Ti lacks. For any gamer seeking top-tier performance and the latest graphical capabilities, the RTX 5090 is the clear choice. The GTX 1080 Ti, while once a strong contender, simply cannot keep pace with current generation demands.
Generated September 25, 2026 from the 11 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 GTX 1080 Ti