Intel Core Ultra 5 125U vs Intel Core Ultra 7 255HX
60.7Single-core72.8
37.5Multi-core73.8
81.9Efficiencyspec-based44.4
51.8Platformspec-based69.6
1 spec wins — Intel Core Ultra 5 125U14 spec wins — Intel Core Ultra 7 255HX
InnoReviews verdict
Intel Core Ultra 7 255HX wins this laptop processor face-off, 67.9 to 53.7, pulling ahead mainly in multi-core (+36) and single-core (+12). Intel Core Ultra 5 125U 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 5 125U
- 73% lower Base TDP: 15 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 38
- 300% higher Performance cores: 8 vs 2
- 231% higher Cinebench R23 (multi): 31,781 vs 9,593
- 187% higher PassMark: 47,933 vs 16,674
General
| Spec | Intel Core Ultra 5 125U | Intel Core Ultra 7 255HX |
|---|---|---|
| Announced | 2023 | 2025 |
| Process | 7 nm | 3 nm+57% |
| Base TDP | 15 W+73% | 55 W |
| Max TDP | 57 W | 160 W+181% |
Cores & Clocks
| Spec | Intel Core Ultra 5 125U | Intel Core Ultra 7 255HX |
|---|---|---|
| Cores | 12 | 20+67% |
| Performance cores | 2 | 8+300% |
| Efficiency cores | 10 | 12+20% |
| Threads | 14 | 20+43% |
| Base clock | 1.3 GHz | 2.4 GHz+85% |
| Boost clock | 4.3 GHz | 5.2 GHz+21% |
| L3 cache | 12 MB | 30 MB+150% |
Integrated GPU
| Spec | Intel Core Ultra 5 125U | Intel Core Ultra 7 255HX |
|---|---|---|
| iGPU | Intel Graphics (4 Xe) | Intel Graphics (4 Xe-cores) |
| iGPU clock | 1,850 MHz | 1,850 MHz |
Memory
| Spec | Intel Core Ultra 5 125U | Intel Core Ultra 7 255HX |
|---|---|---|
| Memory support | LPDDR5X-7467 / DDR5-5600 | DDR5-6400 |
| Max memory | 96 GB | 256 GB+167% |
Benchmarks
| Spec | Intel Core Ultra 5 125U | Intel Core Ultra 7 255HX |
|---|---|---|
| Geekbench 6 (single) | — | 2,959Top 17% |
| Geekbench 6 (multi) | — | 17,915Top 12% |
| Cinebench R23 (single) | 1,566Bottom 33% | 2,154+38%Top 10% |
| Cinebench R23 (multi) | 9,593Bottom 34% | 31,781+231%Top 6% |
| PassMark | 16,674Bottom 37% | 47,933+187%Top 8% |
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