Intel Core i9-14900HX vs Intel Core Ultra 7 255HX
73Single-core72.8
71.7Multi-core73.8
28.9Efficiencyspec-based44.4
40.2iGPU—
78Platformspec-based69.6
7 spec wins — Intel Core i9-14900HX8 spec wins — Intel Core Ultra 7 255HX
InnoReviews verdict
Intel Core Ultra 7 255HX wins this laptop processor face-off, 67.9 to 63.4, pulling ahead mainly in multi-core (+2). Intel Core i9-14900HX 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 i9-14900HX
- 60% higher threads: 32 vs 20
- 33% higher Efficiency cores: 16 vs 12
- 20% higher cores: 24 vs 20
- 20% higher L3 cache: 36 MB vs 30 MB
- 12% higher Boost clock: 5.8 GHz vs 5.2 GHz
Reasons to pick the Intel Core Ultra 7 255HX
- 70% lower process: 3 nm vs 10 nm
- 33% higher Max memory: 256 GB vs 192 GB
- 10% higher PassMark: 47,933 vs 43,593
General
| Spec | Intel Core i9-14900HX | Intel Core Ultra 7 255HX |
|---|---|---|
| Announced | 2024 | 2025 |
| Process | 10 nm | 3 nm+70% |
| Base TDP | 55 W | 55 W |
| Max TDP | 157 W | 160 W+2% |
Cores & Clocks
| Spec | Intel Core i9-14900HX | Intel Core Ultra 7 255HX |
|---|---|---|
| Cores | 24+20% | 20 |
| Performance cores | 8 | 8 |
| Efficiency cores | 16+33% | 12 |
| Threads | 32+60% | 20 |
| Base clock | 2.2 GHz | 2.4 GHz+9% |
| Boost clock | 5.8 GHz+12% | 5.2 GHz |
| L3 cache | 36 MB+20% | 30 MB |
Integrated GPU
| Spec | Intel Core i9-14900HX | Intel Core Ultra 7 255HX |
|---|---|---|
| iGPU | Intel UHD Graphics | Intel Graphics (4 Xe-cores) |
| iGPU clock | 1,650 MHz | 1,850 MHz |
Memory
| Spec | Intel Core i9-14900HX | Intel Core Ultra 7 255HX |
|---|---|---|
| Memory support | DDR5-5600 / DDR4-3200 | DDR5-6400 |
| Max memory | 192 GB | 256 GB+33% |
Benchmarks
| Spec | Intel Core i9-14900HX | Intel Core Ultra 7 255HX |
|---|---|---|
| Geekbench 6 (single) | 2,920Top 19% | 2,959+1%Top 17% |
| Geekbench 6 (multi) | 18,100+1%Top 11% | 17,915Top 12% |
| Cinebench R23 (single) | 2,190+2%Top 7% | 2,154Top 10% |
| Cinebench R23 (multi) | 30,200Top 7% | 31,781+5%Top 6% |
| PassMark | 43,593Top 11% | 47,933+10%Top 8% |
| 3DMark Time Spy Graphics (iGPU) | 744Bottom 25% | — |
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