Intel Core i7-1355U vs Intel Core Ultra 7 155U
60.9Single-core54.1
37.1Multi-core38.4
75.3Efficiencyspec-based81.9
55.7iGPU—
50.3Platformspec-based51.8
4 spec wins — Intel Core i7-1355U7 spec wins — Intel Core Ultra 7 155U
InnoReviews verdict
This one is close to a dead heat: Intel Core i7-1355U scores 52.6 against 52.3 for Intel Core Ultra 7 155U. Pick by the categories that matter to you — Intel Core i7-1355U edges ahead in single-core, or by price.
Which would you pick?
Key differences
Reasons to pick the Intel Core i7-1355U
- Stronger single-core score: 61 vs 54
- 13% higher Geekbench 6 (single): 2,491 vs 2,195
- 11% higher Cinebench R23 (single): 1,805 vs 1,627
Reasons to pick the Intel Core Ultra 7 155U
- 30% lower process: 7 nm vs 10 nm
- 25% higher Efficiency cores: 10 vs 8
- 20% higher cores: 12 vs 10
- 17% higher threads: 14 vs 12
- 17% higher PassMark: 16,133 vs 13,837
General
| Spec | Intel Core i7-1355U | Intel Core Ultra 7 155U |
|---|---|---|
| Announced | 2023 | 2023 |
| Process | 10 nm | 7 nm+30% |
| Base TDP | 15 W | 15 W |
| Max TDP | 55 W | 57 W+4% |
Cores & Clocks
| Spec | Intel Core i7-1355U | Intel Core Ultra 7 155U |
|---|---|---|
| Cores | 10 | 12+20% |
| Performance cores | 2 | 2 |
| Efficiency cores | 8 | 10+25% |
| Threads | 12 | 14+17% |
| Base clock | 1.7 GHz | 1.7 GHz |
| Boost clock | 5 GHz+4% | 4.8 GHz |
| L3 cache | 12 MB | 12 MB |
Integrated GPU
| Spec | Intel Core i7-1355U | Intel Core Ultra 7 155U |
|---|---|---|
| iGPU | Intel Iris Xe (96 EU) | Intel Graphics (4 Xe) |
| iGPU clock | 1,300 MHz | 1,950 MHz |
Memory
| Spec | Intel Core i7-1355U | Intel Core Ultra 7 155U |
|---|---|---|
| Memory support | LPDDR5-6400 / DDR5-5200 / DDR4-3200 / LPDDR4X-4267 | LPDDR5X-7467 / DDR5-5600 |
| Max memory | 96 GB | 96 GB |
Benchmarks
| Spec | Intel Core i7-1355U | Intel Core Ultra 7 155U |
|---|---|---|
| Geekbench 6 (single) | 2,491+13%Top 50% | 2,195Bottom 30% |
| Geekbench 6 (multi) | 8,984Bottom 32% | 8,981Bottom 31% |
| Cinebench R23 (single) | 1,805+11%Top 38% | 1,627Bottom 44% |
| Cinebench R23 (multi) | 8,637Bottom 29% | 9,627+11%Bottom 37% |
| PassMark | 13,837Bottom 27% | 16,133+17%Bottom 34% |
| 3DMark Time Spy Graphics (iGPU) | 1,496Top 42% | — |
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