Intel Core Ultra 7 255HX vs Intel Core Ultra 9 285H
72.8Single-core74.7
73.8Multi-core64.7
44.4Efficiencyspec-based56
—iGPU75.9
69.6Platformspec-based60.5
10 spec wins — Intel Core Ultra 7 255HX5 spec wins — Intel Core Ultra 9 285H
InnoReviews verdict
Intel Core Ultra 7 255HX wins this laptop processor face-off, 67.9 to 66.4, pulling ahead mainly in multi-core (+9). Intel Core Ultra 9 285H still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the Intel Core Ultra 7 255HX
- Stronger multi-core score: 74 vs 65
- 100% higher Max memory: 256 GB vs 128 GB
- 40% higher PassMark: 47,933 vs 34,203
- 39% higher Max TDP: 160 W vs 115 W
- 33% higher Performance cores: 8 vs 6
Reasons to pick the Intel Core Ultra 9 285H
- 21% higher Base clock: 2.9 GHz vs 2.4 GHz
- 18% lower Base TDP: 45 W vs 55 W
General
| Spec | Intel Core Ultra 7 255HX | Intel Core Ultra 9 285H |
|---|---|---|
| Announced | 2025 | 2025 |
| Process | 3 nm | 3 nm |
| Base TDP | 55 W | 45 W+18% |
| Max TDP | 160 W+39% | 115 W |
Cores & Clocks
| Spec | Intel Core Ultra 7 255HX | Intel Core Ultra 9 285H |
|---|---|---|
| Cores | 20+25% | 16 |
| Performance cores | 8+33% | 6 |
| Efficiency cores | 12+20% | 10 |
| Threads | 20+25% | 16 |
| Base clock | 2.4 GHz | 2.9 GHz+21% |
| Boost clock | 5.2 GHz | 5.4 GHz+4% |
| L3 cache | 30 MB+25% | 24 MB |
Integrated GPU
| Spec | Intel Core Ultra 7 255HX | Intel Core Ultra 9 285H |
|---|---|---|
| iGPU | Intel Graphics (4 Xe-cores) | Intel Arc 140T |
| iGPU clock | 1,850 MHz | 2,350 MHz |
Memory
| Spec | Intel Core Ultra 7 255HX | Intel Core Ultra 9 285H |
|---|---|---|
| Memory support | DDR5-6400 | LPDDR5X-8400 / DDR5-6400 |
| Max memory | 256 GB+100% | 128 GB |
Benchmarks
| Spec | Intel Core Ultra 7 255HX | Intel Core Ultra 9 285H |
|---|---|---|
| Geekbench 6 (single) | 2,959Top 17% | 3,080+4%Top 14% |
| Geekbench 6 (multi) | 17,915Top 12% | 17,900Top 12% |
| Cinebench R23 (single) | 2,154Top 10% | 2,180+1%Top 8% |
| Cinebench R23 (multi) | 31,781+31%Top 6% | 24,200Top 12% |
| PassMark | 47,933+40%Top 8% | 34,203Top 18% |
| 3DMark Time Spy Graphics (iGPU) | — | 3,719Top 7% |
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