RTX 5080 vs GTX 1080 Ti
Short answer: which is best?
RTX 5080 is 399.4 % stronger than GTX 1080 Ti. RTX 5080 ranks #3 of 56 measured graphics cards at WhatFPS (16,640 GPU score over 3 verified runs). GTX 1080 Ti ranks #32 of 56 measured graphics cards at WhatFPS (3,332 GPU score over 5 verified runs). The numbers are measured in 8 verified WhatFPS runs — not estimated, not self-reported.
Measured comparison
| Metric | RTX 5080 | GTX 1080 Ti |
|---|---|---|
| GPU score (the card's own performance) | 16,640 | 3,332 |
| Best rig (GAMING — whole PC) | 15,624 | 4,948 |
| Earth II (Vulkan) | 74.3 FPS | 19.9 FPS |
| Mission to Earth II (DX12) | 86.2 FPS | 23.8 FPS |
| Earth II Landing (DX12 Ultimate) | 77.7 FPS | 21.5 FPS |
| Supernova (DX11) | 129.1 FPS | 88 FPS |
| Memory bandwidth | 360 GB/s | 80 GB/s |
| VRAM | 16 GB | 11 GB |
| Ray tracing | Yes | Not supported |
Fragz' verdict
The RTX 5080 is the undeniable champion in this showdown, outperforming the GTX 1080 Ti by a massive 405.9% in GPU score, though it's important to note this is based on a thin sample of just two verified runs. This huge performance leap is clear across our benchmarks, with the RTX 5080 hitting 73.6 FPS in Earth II (Vulkan) and 91.7 FPS in Mission to Earth II (DX12), while the GTX 1080 Ti manages only 19.7 FPS and 23.6 FPS respectively. The RTX 5080's superior raw compute (ALU index of 800230 vs 212160), much higher memory bandwidth of 330 GB/s, and 16 GB of VRAM compared to the GTX 1080 Ti's 11 GB are the core reasons for this difference, along with its support for modern features like ray tracing, mesh shaders, and VRS. For a gamer, this means a night-and-day difference in frame rates and the ability to run the latest games with all the bells and whistles. The GTX 1080 Ti, while still a capable card in its day, is clearly outclassed and would only be a consideration for those on the tightest budgets playing less demanding titles.
Generated September 25, 2026 from the 8 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 5080 · All measurements for GTX 1080 Ti