Intel Core Ultra 5 245HX vs Intel Core Ultra 7 251HX
68.1Single-core66.6
66.2Multi-core65.1
44.4Efficiencyspec-based44.4
63.4Platformspec-based68.1
1 spec wins — Intel Core Ultra 5 245HX7 spec wins — Intel Core Ultra 7 251HX
InnoReviews verdict
This one is close to a dead heat: Intel Core Ultra 5 245HX scores 62.6 against 62.6 for Intel Core Ultra 7 251HX. Pick by the categories that matter to you — Intel Core Ultra 5 245HX edges ahead in single-core and multi-core, or by price.
Which would you pick?
Key differences
Reasons to pick the Intel Core Ultra 5 245HX
No decisive spec advantages — this side competes on price and preference.
Reasons to pick the Intel Core Ultra 7 251HX
- 50% higher Efficiency cores: 12 vs 8
- 29% higher cores: 18 vs 14
- 29% higher threads: 18 vs 14
- 27% higher PassMark: 47,051 vs 37,079
- 25% higher L3 cache: 30 MB vs 24 MB
General
| Spec | Intel Core Ultra 5 245HX | Intel Core Ultra 7 251HX |
|---|---|---|
| Announced | 2025 | 2026 |
| Process | 3 nm | 3 nm |
| Base TDP | 55 W | 55 W |
| Max TDP | 160 W | 160 W |
Cores & Clocks
| Spec | Intel Core Ultra 5 245HX | Intel Core Ultra 7 251HX |
|---|---|---|
| Cores | 14 | 18+29% |
| Performance cores | 6 | 6 |
| Efficiency cores | 8 | 12+50% |
| Threads | 14 | 18+29% |
| Base clock | 3.1 GHz+7% | 2.9 GHz |
| Boost clock | 5.1 GHz | 5.1 GHz |
| L3 cache | 24 MB | 30 MB+25% |
Integrated GPU
| Spec | Intel Core Ultra 5 245HX | Intel Core Ultra 7 251HX |
|---|---|---|
| iGPU | Intel Graphics (3 Xe-cores) | Intel Graphics (3 Xe) |
| iGPU clock | 1,900 MHz | 1,800 MHz |
Memory
| Spec | Intel Core Ultra 5 245HX | Intel Core Ultra 7 251HX |
|---|---|---|
| Memory support | DDR5-6400 | DDR5-6400 |
| Max memory | 256 GB | 256 GB |
Benchmarks
| Spec | Intel Core Ultra 5 245HX | Intel Core Ultra 7 251HX |
|---|---|---|
| Geekbench 6 (single) | — | 2,762Top 33% |
| Geekbench 6 (multi) | — | 14,233Top 31% |
| Cinebench R23 (single) | — | 1,941Top 27% |
| Cinebench R23 (multi) | — | 26,001Top 11% |
| PassMark | 37,079Top 15% | 47,051+27%Top 8% |
| PassMark (single thread) | 4,477Top 9% | 4,541+1%Top 7% |
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