Core Ultra 7 265K vs 13th Gen Core i5-13420H
Short answer: which is best?
Core Ultra 7 265K is 121.4 % stronger than 13th Gen Core i5-13420H. Core Ultra 7 265K ranks #5 of 67 measured processors at WhatFPS (13,700 CPU score over 2 verified runs). 13th Gen Core i5-13420H ranks #51 of 67 measured processors at WhatFPS (6,187 CPU score over 1 verified runs). The numbers are measured in 3 verified WhatFPS runs — not estimated, not self-reported.
Measured comparison
| Metric | Core Ultra 7 265K | 13th Gen Core i5-13420H |
|---|---|---|
| CPU score (the processor's own performance) | 13,700 | 6,187 |
| Best rig (GAMING — whole PC) | 13,665 | 4,372 |
| Integer (MT) | 11.5 Gop/s | 4.3 Gop/s |
| Single-thread (1T) | 0.87 Gop/s | 0.53 Gop/s |
| Draw calls/s (DX11) | 11,952,062 | 9,131,568 |
| Cores / threads | 20 / 20 | 8 / 12 |
| L3 cache | 30 MB | 12 MB |
Fragz' verdict
The Core Ultra 7 265K decisively wins this matchup, leading the 13th Gen Core i5-13420H by a substantial 121.4% in overall CPU score. This performance edge is evident across the board, with the Ultra 7 265K achieving 11.5 Gop/s in multi-threaded integer operations compared to the i5's 4.3 Gop/s, and a stronger 0.87 Gop/s in single-thread performance which often dictates gaming FPS ceilings. Its 20 cores and 20 threads, alongside a larger 30 MB L3 cache, drive significantly higher draw calls per second and 99.7 FPS in Supernova DX11 compared to the i5's 76.2 FPS. While the Core Ultra 7 265K clearly offers superior processing power, it's important to note that both CPUs were measured with only one verified run each, so these results are based on a thin sample.
Generated September 24, 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 Core Ultra 7 265K · All measurements for 13th Gen Core i5-13420H