Intel Core i7-10870H vs Intel Core i7-1255U
40.7Single-core52.8
36.1Multi-core32.6
31.6Efficiencyspec-based75.3
26.9iGPU55.7
57.3Platformspec-based47.7
8 spec wins — Intel Core i7-10870H7 spec wins — Intel Core i7-1255U
InnoReviews verdict
Intel Core i7-1255U wins this laptop processor face-off, 48.6 to 38.8, pulling ahead mainly in iGPU (+29) and single-core (+12). Intel Core i7-10870H 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 i7-10870H
- Stronger multi-core score: 36 vs 33
- 100% higher Max memory: 128 GB vs 64 GB
- 41% higher Cinebench R23 (multi): 9,594 vs 6,800
- 33% higher threads: 16 vs 12
- 33% higher L3 cache: 16 MB vs 12 MB
Reasons to pick the Intel Core i7-1255U
- Stronger single-core score: 53 vs 41
- Stronger iGPU score: 56 vs 27
- 265% higher 3DMark Time Spy Graphics (iGPU): 1,496 vs 410
- 67% lower Base TDP: 15 W vs 45 W
- 31% higher Cinebench R23 (single): 1,600 vs 1,223
General
| Spec | Intel Core i7-10870H | Intel Core i7-1255U |
|---|---|---|
| Announced | 2020 | 2022 |
| Process | 14 nm | 10 nm+29% |
| Base TDP | 45 W | 15 W+67% |
| Max TDP | — | 55 W |
Cores & Clocks
| Spec | Intel Core i7-10870H | Intel Core i7-1255U |
|---|---|---|
| Cores | 8 | 10+25% |
| Performance cores | — | 2 |
| Efficiency cores | — | 8 |
| Threads | 16+33% | 12 |
| Base clock | 2.2 GHz+29% | 1.7 GHz |
| Boost clock | 5 GHz+6% | 4.7 GHz |
| L3 cache | 16 MB+33% | 12 MB |
Integrated GPU
| Spec | Intel Core i7-10870H | Intel Core i7-1255U |
|---|---|---|
| iGPU | Intel UHD Graphics 630 (24 EU) | Intel Iris Xe (96 EU) |
| iGPU clock | 1,200 MHz | 1,250 MHz |
Memory
| Spec | Intel Core i7-10870H | Intel Core i7-1255U |
|---|---|---|
| Memory support | DDR4-2933 | LPDDR5-5200 / DDR5-4800 / LPDDR4X-4267 |
| Max memory | 128 GB+100% | 64 GB |
Benchmarks
| Spec | Intel Core i7-10870H | Intel Core i7-1255U |
|---|---|---|
| Geekbench 6 (single) | 1,685Bottom 15% | 2,130+26%Bottom 25% |
| Geekbench 6 (multi) | 7,713+17%Bottom 23% | 6,600Bottom 17% |
| Cinebench R23 (single) | 1,223Bottom 17% | 1,600+31%Bottom 41% |
| Cinebench R23 (multi) | 9,594+41%Bottom 36% | 6,800Bottom 20% |
| PassMark | 13,923+8%Bottom 28% | 12,941Bottom 25% |
| 3DMark Time Spy Graphics (iGPU) | 410Bottom 16% | 1,496+265%Top 42% |
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