Core Ultra 9 285HX
24C/24T · 5.5 GHz · 55 W · PassMark #204
Core Ultra 9 285K
Arrow Lake · 24C · 5.7 GHz · LGA1851
Core Ultra 9 285K takes it — here’s why.
In our weighted Specdex score, Core Ultra 9 285HX lands at 32 and Core Ultra 9 285K at 89. That puts Core Ultra 9 285K ahead by 57 points — a decisive margin driven mostly by its strengths in the categories below.
Pick Core Ultra 9 285HX if…
- ✓PassMark CPU Mark of 57,229 — solid multi-thread numbers
- ✓Intel's latest architecture with on-chip NPU
Pick Core Ultra 9 285K if…
- ✓Far more efficient than 14900K
- ✓Strong multi-thread productivity
- ✓New LGA1851 platform with DDR5-6400
Winner by scenario
Derived from the sub-score breakdown · not a separate testValue for money
Core Ultra 9 285KSpecdex score per dollar at MSRP
Core Ultra 9 285K more score per dollar ($589 vs $599).
Score breakdown
Specs side-by-side
| Spec | Core Ultra 9 285HX | Core Ultra 9 285K |
|---|---|---|
| Cores | 24 (8P + 16E) | 24 (8P + 16E) |
| Threads | 24 | 24 |
| Base clock | 2.8 GHz | 3.7 GHz |
| Boost clock | 5.5 GHz | 5.7 GHz |
| L3 cache | 36 MB | 36 MB |
| TDP | 55 W base / 160 W turbo | 125 W (PL1) / 250 W (PL2) |
| Socket | BGA 2114 | LGA1851 |
| Class | Laptop (HX) | — |
| PassMark rank | #204 of 5,901 | — |
| PassMark CPU Mark | 57,229 | — |
| Process | — | TSMC N3B |
| iGPU | — | Intel Graphics (Xe-LPG, 4 Xe cores @ 2.0 GHz) |
| NPU | — | 13 TOPS |
| Memory | — | DDR5-6400 |
Core Ultra 9 285HX
- +PassMark CPU Mark of 57,229 — solid multi-thread numbers
- +Intel's latest architecture with on-chip NPU
- −Requires recent-generation motherboard and DDR5 memory
- −Newer-generation parts pull ahead in current rankings
Core Ultra 9 285K
- +Far more efficient than 14900K
- +Strong multi-thread productivity
- +New LGA1851 platform with DDR5-6400
- −Gaming regresses vs 14900K in some titles
- −No hyper-threading (24 threads from 24 cores)
- −13 TOPS NPU is modest
FAQ: Core Ultra 9 285HX vs Core Ultra 9 285K
Which is better, Core Ultra 9 285HX or Core Ultra 9 285K? +
Core Ultra 9 285K scores 89 on our weighted rubric — ahead by 57. Your best pick depends on the sub-scores above.
Is Core Ultra 9 285HX worth the price? +
At $599, Core Ultra 9 285HX delivers a Specdex score of 32 — strongest in passmark.
Is Core Ultra 9 285K worth the price? +
At $589, Core Ultra 9 285K delivers a Specdex score of 89 — strongest in multi.
Does Core Ultra 9 285HX or Core Ultra 9 285K last longer? +
Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.
Which is the better value, Core Ultra 9 285HX or Core Ultra 9 285K? +
Core Ultra 9 285K — more score per dollar ($589 vs $599). Specdex score per dollar at MSRP.