Intel Core i7-1255U vs Intel Core i7-1355U
52.8Single-core60.9
32.6Multi-core37.1
75.3Efficiencyspec-based75.3
55.7iGPU55.7
47.7Platformspec-based50.3
0 spec wins — Intel Core i7-1255U8 spec wins — Intel Core i7-1355U
InnoReviews verdict
Intel Core i7-1355U wins this laptop processor face-off, 52.6 to 48.6, pulling ahead mainly in single-core (+8) and multi-core (+5). Intel Core i7-1255U 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 i7-1255U
No decisive spec advantages — this side competes on price and preference.
Reasons to pick the Intel Core i7-1355U
- Stronger single-core score: 61 vs 53
- Stronger multi-core score: 37 vs 33
- 50% higher Max memory: 96 GB vs 64 GB
- 36% higher Geekbench 6 (multi): 8,984 vs 6,600
- 27% higher Cinebench R23 (multi): 8,637 vs 6,800
General
| Spec | Intel Core i7-1255U | Intel Core i7-1355U |
|---|---|---|
| Announced | 2022 | 2023 |
| Process | 10 nm | 10 nm |
| Base TDP | 15 W | 15 W |
| Max TDP | 55 W | 55 W |
Cores & Clocks
| Spec | Intel Core i7-1255U | Intel Core i7-1355U |
|---|---|---|
| Cores | 10 | 10 |
| Performance cores | 2 | 2 |
| Efficiency cores | 8 | 8 |
| Threads | 12 | 12 |
| Base clock | 1.7 GHz | 1.7 GHz |
| Boost clock | 4.7 GHz | 5 GHz+6% |
| L3 cache | 12 MB | 12 MB |
Integrated GPU
| Spec | Intel Core i7-1255U | Intel Core i7-1355U |
|---|---|---|
| iGPU | Intel Iris Xe (96 EU) | Intel Iris Xe (96 EU) |
| iGPU clock | 1,250 MHz | 1,300 MHz |
Memory
| Spec | Intel Core i7-1255U | Intel Core i7-1355U |
|---|---|---|
| Memory support | LPDDR5-5200 / DDR5-4800 / LPDDR4X-4267 | LPDDR5-6400 / DDR5-5200 / DDR4-3200 / LPDDR4X-4267 |
| Max memory | 64 GB | 96 GB+50% |
Benchmarks
| Spec | Intel Core i7-1255U | Intel Core i7-1355U |
|---|---|---|
| Geekbench 6 (single) | 2,130Bottom 25% | 2,491+17%Top 50% |
| Geekbench 6 (multi) | 6,600Bottom 17% | 8,984+36%Bottom 32% |
| Cinebench R23 (single) | 1,600Bottom 41% | 1,805+13%Top 38% |
| Cinebench R23 (multi) | 6,800Bottom 20% | 8,637+27%Bottom 29% |
| PassMark | 12,941Bottom 25% | 13,837+7%Bottom 27% |
| 3DMark Time Spy Graphics (iGPU) | 1,496Top 42% | 1,496Top 42% |
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