Intel Core i5-12450HX vs Intel Core i7-1255U
47.6Single-core52.8
40.4Multi-core32.6
28.9Efficiencyspec-based75.3
—iGPU55.7
52.2Platformspec-based47.7
7 spec wins — Intel Core i5-12450HX4 spec wins — Intel Core i7-1255U
InnoReviews verdict
Intel Core i7-1255U wins this laptop processor face-off, 48.6 to 42.4, pulling ahead mainly in single-core (+5). Intel Core i5-12450HX 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 i5-12450HX
- Stronger multi-core score: 40 vs 33
- 185% higher Max TDP: 157 W vs 55 W
- 100% higher Performance cores: 4 vs 2
- 100% higher Max memory: 128 GB vs 64 GB
- 41% higher Base clock: 2.4 GHz vs 1.7 GHz
Reasons to pick the Intel Core i7-1255U
- Stronger single-core score: 53 vs 48
- 100% higher Efficiency cores: 8 vs 4
- 73% lower Base TDP: 15 W vs 55 W
- 25% higher cores: 10 vs 8
General
| Spec | Intel Core i5-12450HX | Intel Core i7-1255U |
|---|---|---|
| Announced | 2022 | 2022 |
| Process | 10 nm | 10 nm |
| Base TDP | 55 W | 15 W+73% |
| Max TDP | 157 W+185% | 55 W |
Cores & Clocks
| Spec | Intel Core i5-12450HX | Intel Core i7-1255U |
|---|---|---|
| Cores | 8 | 10+25% |
| Performance cores | 4+100% | 2 |
| Efficiency cores | 4 | 8+100% |
| Threads | 12 | 12 |
| Base clock | 2.4 GHz+41% | 1.7 GHz |
| Boost clock | 4.4 GHz | 4.7 GHz+7% |
| L3 cache | 12 MB | 12 MB |
Integrated GPU
| Spec | Intel Core i5-12450HX | Intel Core i7-1255U |
|---|---|---|
| iGPU | Intel UHD Graphics (16 EU) | Intel Iris Xe (96 EU) |
| iGPU clock | 1,300 MHz | 1,250 MHz |
Memory
| Spec | Intel Core i5-12450HX | Intel Core i7-1255U |
|---|---|---|
| Memory support | DDR5-4800 / DDR4-3200 | LPDDR5-5200 / DDR5-4800 / LPDDR4X-4267 |
| Max memory | 128 GB+100% | 64 GB |
Benchmarks
| Spec | Intel Core i5-12450HX | Intel Core i7-1255U |
|---|---|---|
| Geekbench 6 (single) | 2,210+4%Bottom 26% | 2,130Bottom 21% |
| Geekbench 6 (multi) | 9,230+40%Bottom 34% | 6,600Bottom 16% |
| Cinebench R23 (single) | — | 1,600Bottom 35% |
| Cinebench R23 (multi) | — | 6,800Bottom 19% |
| PassMark | 17,605+36%Bottom 40% | 12,941Bottom 23% |
| 3DMark Time Spy Graphics (iGPU) | — | 1,496Top 43% |
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