Intel Core i9-12900HK vs Intel Core Ultra 7 255HX
60.5Single-core72.8
51Multi-core73.8
40.5Efficiencyspec-based44.4
55.7iGPU—
59Platformspec-based69.6
2 spec wins — Intel Core i9-12900HK14 spec wins — Intel Core Ultra 7 255HX
InnoReviews verdict
Intel Core Ultra 7 255HX wins this laptop processor face-off, 67.9 to 53.5, pulling ahead mainly in multi-core (+23) and single-core (+12). Intel Core i9-12900HK 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 i9-12900HK
- 18% lower Base TDP: 45 W vs 55 W
Reasons to pick the Intel Core Ultra 7 255HX
- Stronger single-core score: 73 vs 61
- Stronger multi-core score: 74 vs 51
- 300% higher Max memory: 256 GB vs 64 GB
- 92% higher PassMark: 47,933 vs 24,954
- 81% higher Cinebench R23 (multi): 31,781 vs 17,600
General
| Spec | Intel Core i9-12900HK | Intel Core Ultra 7 255HX |
|---|---|---|
| Announced | 2022 | 2025 |
| Process | 10 nm | 3 nm+70% |
| Base TDP | 45 W+18% | 55 W |
| Max TDP | 115 W | 160 W+39% |
Cores & Clocks
| Spec | Intel Core i9-12900HK | Intel Core Ultra 7 255HX |
|---|---|---|
| Cores | 14 | 20+43% |
| Performance cores | 6 | 8+33% |
| Efficiency cores | 8 | 12+50% |
| Threads | 20 | 20 |
| Base clock | 2.5 GHz+4% | 2.4 GHz |
| Boost clock | 5 GHz | 5.2 GHz+4% |
| L3 cache | 24 MB | 30 MB+25% |
Integrated GPU
| Spec | Intel Core i9-12900HK | Intel Core Ultra 7 255HX |
|---|---|---|
| iGPU | Intel Iris Xe (96 EU) | Intel Graphics (4 Xe-cores) |
| iGPU clock | 1,450 MHz | 1,850 MHz |
Memory
| Spec | Intel Core i9-12900HK | Intel Core Ultra 7 255HX |
|---|---|---|
| Memory support | DDR5-4800 / LPDDR5-5200 / DDR4-3200 | DDR5-6400 |
| Max memory | 64 GB | 256 GB+300% |
Benchmarks
| Spec | Intel Core i9-12900HK | Intel Core Ultra 7 255HX |
|---|---|---|
| Geekbench 6 (single) | 2,450Bottom 44% | 2,959+21%Top 17% |
| Geekbench 6 (multi) | 12,700Top 38% | 17,915+41%Top 12% |
| Cinebench R23 (single) | 1,810Top 38% | 2,154+19%Top 10% |
| Cinebench R23 (multi) | 17,600Top 25% | 31,781+81%Top 6% |
| PassMark | 24,954Top 35% | 47,933+92%Top 8% |
| 3DMark Time Spy Graphics (iGPU) | 1,496Top 43% | — |
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