13th Gen Core i9-13900K vs Core Ultra 7 155H
Short answer: which is best?
13th Gen Core i9-13900K is 382 % stronger than Core Ultra 7 155H. 13th Gen Core i9-13900K ranks #8 of 102 measured processors at WhatFPS (13,199 CPU score over 2 verified runs). Core Ultra 7 155H ranks #98 of 102 measured processors at WhatFPS (2,738 CPU score over 1 verified runs). The numbers are measured in 3 verified WhatFPS runs — not estimated, not self-reported.
Measured comparison
| Metric | 13th Gen Core i9-13900K | Core Ultra 7 155H |
|---|---|---|
| CPU score (the processor's own performance) | 13,199 | 2,738 |
| Best rig (GAMING — whole PC) | 10,782 | 5,007 |
| Integer (MT) | 12.5 Gop/s | 1.7 Gop/s |
| Single-thread (1T) | 0.88 Gop/s | 0.18 Gop/s |
| Draw calls/s (DX11) | 9,342,700 | 8,390,711 |
| Cores / threads | 24 / 32 | 16 / 22 |
| L3 cache | 36 MB | 24 MB |
Fragz' verdict
The 13th Gen Core i9-13900K clearly takes the lead in this CPU showdown, outperforming the Core Ultra 7 155H by a massive 382.1% in its overall CPU score. This huge gap is evident across all CPU-specific gaming metrics, with the 13th Gen Core i9-13900K delivering significantly higher single-thread performance at 0.88 Gop/s compared to 0.18 Gop/s, which usually dictates in-game FPS ceilings. It also boasts superior multi-threaded integer performance at 12.5 Gop/s versus 1.7 Gop/s, meaning better handling of background tasks and game compilation, alongside more draw calls per second and higher Supernova DX11 FPS. However, both CPUs have a thin sample size, with only two verified runs for the 13th Gen Core i9-13900K and just one for the Core Ultra 7 155H, so these numbers should be viewed with some caution. For raw gaming performance and overall CPU power, the 13th Gen Core i9-13900K is the undisputed choice here.
Generated October 31, 2026 from the 3 verified runs available then. The verdict is never silently rewritten — new numbers get a new verdict.
What the numbers mean
The CPU score is the processor's own performance — that is what we rank on. GAMING is the whole rig's score in the best PC we measured the processor in, and leans heavily on the graphics card. A strong processor in a weak PC gets a low GAMING score without being worse. 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 13th Gen Core i9-13900K · All measurements for Core Ultra 7 155H