Component comparison
Core Ultra 7 255H vs Core Ultra 7 155U
Core Ultra 7 255H vs Core Ultra 7 155U — detailed CPU comparison: performance, cores, frequencies.
Advantages
A
Core Ultra 7 255H
- + Release year (+2)
- + Cores (+4)
- + Threads (+2)
- + Base clock (GHz) (+0.30 GHz)
- + Boost clock (GHz) (+0.30 GHz)
- + L3 cache (MB) (+12 MB)
- + TGP / TDP (W) (+13 W)
- + Lithography (nm) (-4 nm)
- + Normalized score (+40.9)
B
Core Ultra 7 155U
Components are close in specs
Detailed spec comparison
| Spec |
Component A
Core Ultra 7 255H
|
Component B
Core Ultra 7 155U
|
|---|---|---|
| Release year | 2025 (+2) | 2023 |
| Cores | 16 (+4) | 12 |
| Threads | 16 (+2) | 14 |
| Base clock (GHz) | 2.00 GHz (+0.30 GHz) | 1.70 GHz |
| Boost clock (GHz) | 5.10 GHz (+0.30 GHz) | 4.80 GHz |
| L1 cache (KB) | — | — |
| L2 cache (KB) | — | — |
| L3 cache (MB) | 24 MB (+12 MB) | 12 MB |
| Bandwidth (GB/s) | — | — |
| Memory channels | — | — |
| Max memory (GB) | — | — |
| TGP / TDP (W) | 28 W (+13 W) | 15 W |
| Lithography (nm) | 3 nm (-4 nm) | 7 nm |
| Critical temp (°C) | 110 °C | 110 °C |
| PassMark (overall) | — | 16,193 |
| PassMark (single-thread) | — | — |
| Geekbench 5 (single-core) | 2,487 | — |
| Geekbench 5 (multi-core) | 13,219 | — |
| Normalized score | 91.4 (+40.9) | 50.5 |
In both
AVX
AVX2
AES-NI
VT-x
VT-d
Based on the comparison:
Core Ultra 7 255H wins 9 of the comparable criteria.
The choice depends on your use case.
🤔 How to choose
Universal advice for any use case.
- Reliability vs price: reliability (median 50) ↔ price (median 385.1).
- Weight vs CPU: mobility (median 48) ↔ overall performance (median 49.8).
- Upgradeability vs battery: upgradability (median 50) ↔ battery life (median 2.8).