13th Gen Core i9-13900K vs Core i9-14900HX

Short answer: which is best?

13th Gen Core i9-13900K is 27.3 % stronger than Core i9-14900HX. 13th Gen Core i9-13900K ranks #8 of 102 measured processors at WhatFPS (13,199 CPU score over 2 verified runs). Core i9-14900HX ranks #26 of 102 measured processors at WhatFPS (10,367 CPU score over 1 verified runs). The numbers are measured in 3 verified WhatFPS runs — not estimated, not self-reported.

Measured comparison

Fragz' verdict

The 13th Gen Core i9-13900K takes the overall win, leading the Core i9-14900HX by 27.3% in CPU score, though both samples are thin with only two and one verified runs respectively. This lead is primarily driven by its significantly stronger multi-threaded performance, hitting 12.5 Gop/s in the integer test compared to the 14900HX's 7.4 Gop/s, alongside a higher peak clock of 6119 MHz. While the 13900K also shows a slight edge in single-thread Gop/s, which often sets the FPS ceiling in games, both CPUs perform almost identically in DX11 Supernova FPS and draw calls per second. For pure gaming performance in titles that heavily rely on single-thread speed, the gap might narrow, but for tasks leveraging multiple cores or general system responsiveness, the 13900K holds a clear advantage.

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 i9-14900HX