Intel Core i3-N305 vs Intel Core Ultra 7 155U
31.4Single-core54.1
28Multi-core38.4
75.3Efficiencyspec-based81.9
34.1iGPU—
30.5Platformspec-based51.8
1 spec wins — Intel Core i3-N30514 spec wins — Intel Core Ultra 7 155U
InnoReviews verdict
Intel Core Ultra 7 155U wins this laptop processor face-off, 52.3 to 36.9, pulling ahead mainly in single-core (+23) and multi-core (+10). Intel Core i3-N305 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 i3-N305
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 31
- Stronger multi-core score: 38 vs 28
- 500% higher Max memory: 96 GB vs 16 GB
- 100% higher L3 cache: 12 MB vs 6 MB
- 92% higher Geekbench 6 (multi): 8,981 vs 4,681
General
| Spec | Intel Core i3-N305 | Intel Core Ultra 7 155U |
|---|---|---|
| Announced | 2023 | 2023 |
| Process | 10 nm | 7 nm+30% |
| Base TDP | 15 W | 15 W |
| Max TDP | 35 W | 57 W+63% |
Cores & Clocks
| Spec | Intel Core i3-N305 | Intel Core Ultra 7 155U |
|---|---|---|
| Cores | 8 | 12+50% |
| Performance cores | 0 | 2 |
| Efficiency cores | 8 | 10+25% |
| Threads | 8 | 14+75% |
| Base clock | 1.8 GHz+6% | 1.7 GHz |
| Boost clock | 3.8 GHz | 4.8 GHz+26% |
| L3 cache | 6 MB | 12 MB+100% |
Integrated GPU
| Spec | Intel Core i3-N305 | Intel Core Ultra 7 155U |
|---|---|---|
| iGPU | Intel UHD Graphics (32 EU) | Intel Graphics (4 Xe) |
| iGPU clock | 1,250 MHz | 1,950 MHz |
Memory
| Spec | Intel Core i3-N305 | Intel Core Ultra 7 155U |
|---|---|---|
| Memory support | DDR4-3200, DDR5-4800, LPDDR5-4800 | LPDDR5X-7467 / DDR5-5600 |
| Max memory | 16 GB | 96 GB+500% |
Benchmarks
| Spec | Intel Core i3-N305 | Intel Core Ultra 7 155U |
|---|---|---|
| Geekbench 6 (single) | 1,274Bottom 6% | 2,195+72%Bottom 30% |
| Geekbench 6 (multi) | 4,681Bottom 9% | 8,981+92%Bottom 31% |
| Cinebench R23 (single) | 983Bottom 9% | 1,627+66%Bottom 44% |
| Cinebench R23 (multi) | 5,049Bottom 13% | 9,627+91%Bottom 37% |
| PassMark | 9,350Bottom 17% | 16,133+73%Bottom 34% |
| 3DMark Time Spy Graphics (iGPU) | 567Bottom 23% | — |
Related comparisons
Intel Core i3-N305vs Intel Core i7-10510UVSIntel Core i3-N305vs Intel Core i7-10750HVSIntel Core i3-N305vs Intel Core i7-8550UVSIntel Core i3-N305vs Intel Core i5-10210UVSIntel Core Ultra 7 155Uvs Intel Core i7-1360PVSIntel Core Ultra 7 155Uvs Intel Core i7-1355UVSIntel Core Ultra 7 155Uvs Intel Core i7-12700HVSIntel Core Ultra 7 155Uvs Intel Core 5 120UVS