13th Gen Core i9-13900K vs Core i9-10900F
Short answer: which is best?
13th Gen Core i9-13900K is 56.6 % stronger than Core i9-10900F. 13th Gen Core i9-13900K ranks #5 of 107 measured processors at WhatFPS (14,605 CPU score in its best run — best of 3 rigs, 3 verified runs). Core i9-10900F ranks #37 of 107 measured processors at WhatFPS (9,329 CPU score in its best run — 1 rig, 1 verified run). Each part is shown at its best run, picked from 4 verified WhatFPS runs — measured, not estimated, not self-reported.
Measured comparison
| Metric | 13th Gen Core i9-13900K | Core i9-10900F |
|---|---|---|
| CPU score, best run (the processor's own performance) | 14,605 | 9,329 |
| Best rig (GAMING — whole PC) | 13,170 | 7,406 |
| Integer (MT) | 15 Gop/s | 8.4 Gop/s |
| Single-thread (1T) | 0.88 Gop/s | 0.55 Gop/s |
| Draw calls/s (DX11) | 11,749,277 | 4,374,625 |
| Cores / threads | 24 / 32 | 10 / 20 |
| L3 cache | 36 MB | 20 MB |
Fragz' verdict
The 13th Gen Core i9-13900K clearly takes the lead over the Core i9-10900F, outscoring it by 41.5% in our CPU component score, though we note the sample size for both processors is currently thin with only two and one verified runs respectively. This substantial performance gap is evident across the board, with the 13th Gen Core i9-13900K achieving significantly higher single-thread performance at 0.88 Gop/s compared to 0.55 Gop/s, which directly translates to its 77.9 FPS in Supernova DX11 versus 36.5 FPS for the Core i9-10900F. Its superior multi-threaded integer performance of 12.5 Gop/s and 9.3 million draw calls per second also indicates better handling of background tasks and game engines. This means gamers can expect a much higher FPS ceiling and overall responsiveness from the 13th Gen Core i9-13900K. While the Core i9-10900F might still power a decent rig, the performance difference makes the 13th Gen Core i9-13900K the undisputed choice for a top-tier gaming experience.
Generated November 7, 2026 from the 4 verified runs available then. The verdict is never silently rewritten — new numbers get a new verdict.
What the numbers mean
The headline score is the part's best measured run, and the measurements under it come from that same run. It shows what the part has been proven to do — not what an average rig gets out of it. 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 i9-10900F