Intel Core 3 100U vs Intel Core Ultra 7 155U
49.4Single-core54.1
33.6Multi-core38.4
75.3Efficiencyspec-based81.9
45.9Platformspec-based51.8
2 spec wins — Intel Core 3 100U10 spec wins — Intel Core Ultra 7 155U
InnoReviews verdict
Intel Core Ultra 7 155U wins this laptop processor face-off, 52.3 to 47, pulling ahead mainly in multi-core (+5) and single-core (+5). Intel Core 3 100U 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 3 100U
No decisive spec advantages — this side competes on price and preference.
Reasons to pick the Intel Core Ultra 7 155U
- Stronger single-core score: 54 vs 49
- Stronger multi-core score: 38 vs 34
- 150% higher Efficiency cores: 10 vs 4
- 100% higher cores: 12 vs 6
- 75% higher threads: 14 vs 8
General
| Spec | Intel Core 3 100U | Intel Core Ultra 7 155U |
|---|---|---|
| Announced | 2024 | 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 3 100U | Intel Core Ultra 7 155U |
|---|---|---|
| Cores | 6 | 12+100% |
| Performance cores | 2 | 2 |
| Efficiency cores | 4 | 10+150% |
| Threads | 8 | 14+75% |
| Base clock | 1.2 GHz | 1.7 GHz+42% |
| Boost clock | 4.7 GHz | 4.8 GHz+2% |
| L3 cache | 10 MB | 12 MB+20% |
Integrated GPU
| Spec | Intel Core 3 100U | Intel Core Ultra 7 155U |
|---|---|---|
| iGPU | Intel Graphics (64 EU) | Intel Graphics (4 Xe) |
| iGPU clock | 1,250 MHz | 1,950 MHz |
Memory
| Spec | Intel Core 3 100U | Intel Core Ultra 7 155U |
|---|---|---|
| Memory support | DDR5-5200 / DDR4-3200 / LPDDR5X-5200 / LPDDR4X-4267 | LPDDR5X-7467 / DDR5-5600 |
| Max memory | 96 GB | 96 GB |
Benchmarks
| Spec | Intel Core 3 100U | Intel Core Ultra 7 155U |
|---|---|---|
| Geekbench 6 (single) | 2,295+5%Bottom 35% | 2,195Bottom 29% |
| Geekbench 6 (multi) | 6,940Bottom 19% | 8,981+29%Bottom 31% |
| Cinebench R23 (single) | — | 1,627Bottom 43% |
| Cinebench R23 (multi) | — | 9,627Bottom 35% |
| PassMark | 12,302Bottom 22% | 16,133+31%Bottom 34% |
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