Core Ultra 9 285K vs Core Ultra 9 285H
Short answer: which is best?
Core Ultra 9 285K is 40.7 % stronger than Core Ultra 9 285H. Core Ultra 9 285K ranks #2 of 71 measured processors at WhatFPS (15,519 CPU score over 1 verified runs). Core Ultra 9 285H ranks #13 of 71 measured processors at WhatFPS (11,033 CPU score over 1 verified runs). The numbers are measured in 2 verified WhatFPS runs — not estimated, not self-reported.
Measured comparison
| Metric | Core Ultra 9 285K | Core Ultra 9 285H |
|---|---|---|
| CPU score (the processor's own performance) | 15,519 | 11,033 |
| Best rig (GAMING — whole PC) | 11,994 | 3,354 |
| Integer (MT) | 12.7 Gop/s | 6.3 Gop/s |
| Single-thread (1T) | 0.95 Gop/s | 0.89 Gop/s |
| Draw calls/s (DX11) | 11,963,538 | 3,110,756 |
| Cores / threads | 24 / 24 | 16 / 16 |
| L3 cache | 36 MB | 24 MB |
Fragz' verdict
The Core Ultra 9 285K takes a decisive win over the Core Ultra 9 285H, leading by 40.7% in overall CPU score. This lead is driven by its significantly higher multi-threaded integer performance at 12.7 Gop/s compared to 6.3 Gop/s, backed by more cores and L3 cache. For gamers, the 285K also delivers a much stronger performance in DX11 draw calls per second and nearly four times the FPS in our Supernova DX11 test, suggesting better handling of game engine tasks. While the sample size for both CPUs is currently thin with only one verified run each, the Core Ultra 9 285K's slightly better single-thread performance and substantial multi-core gains make it the clear choice for a high-performance gaming rig.
Generated September 24, 2026 from the 2 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 9 285K · All measurements for Core Ultra 9 285H