Intel Core i9-14900HX vs Intel Core Ultra 7 251HX
73Single-core66.6
71.7Multi-core65.1
28.9Efficiencyspec-based44.4
40.2iGPU—
78Platformspec-based68.1
10 spec wins — Intel Core i9-14900HX6 spec wins — Intel Core Ultra 7 251HX
InnoReviews verdict
This one is close to a dead heat: Intel Core i9-14900HX scores 63.4 against 62.6 for Intel Core Ultra 7 251HX. Pick by the categories that matter to you — Intel Core i9-14900HX edges ahead in multi-core and single-core, or by price.
Which would you pick?
Key differences
Reasons to pick the Intel Core i9-14900HX
- Stronger single-core score: 73 vs 67
- Stronger multi-core score: 72 vs 65
- 78% higher threads: 32 vs 18
- 33% higher cores: 24 vs 18
- 33% higher Performance cores: 8 vs 6
Reasons to pick the Intel Core Ultra 7 251HX
- 70% lower process: 3 nm vs 10 nm
- 33% higher Max memory: 256 GB vs 192 GB
- 32% higher Base clock: 2.9 GHz vs 2.2 GHz
General
| Spec | Intel Core i9-14900HX | Intel Core Ultra 7 251HX |
|---|---|---|
| Announced | 2024 | 2026 |
| 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 251HX |
|---|---|---|
| Cores | 24+33% | 18 |
| Performance cores | 8+33% | 6 |
| Efficiency cores | 16+33% | 12 |
| Threads | 32+78% | 18 |
| Base clock | 2.2 GHz | 2.9 GHz+32% |
| Boost clock | 5.8 GHz+14% | 5.1 GHz |
| L3 cache | 36 MB+20% | 30 MB |
Integrated GPU
| Spec | Intel Core i9-14900HX | Intel Core Ultra 7 251HX |
|---|---|---|
| iGPU | Intel UHD Graphics | Intel Graphics (3 Xe) |
| iGPU clock | 1,650 MHz | 1,800 MHz |
Memory
| Spec | Intel Core i9-14900HX | Intel Core Ultra 7 251HX |
|---|---|---|
| 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 251HX |
|---|---|---|
| Geekbench 6 (single) | 2,920+6%Top 22% | 2,762Top 33% |
| Geekbench 6 (multi) | 18,100+27%Top 14% | 14,233Top 30% |
| Cinebench R23 (single) | 2,190+13%Top 9% | 1,941Top 26% |
| Cinebench R23 (multi) | 30,200+16%Top 8% | 26,001Top 12% |
| PassMark | 43,593Top 12% | 47,051+8%Top 8% |
| 3DMark Time Spy Graphics (iGPU) | 744Bottom 27% | — |
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