Component comparison
Core Ultra 5 125U vs Core Ultra 7 255U
Core Ultra 5 125U vs Core Ultra 7 255U — detailed CPU comparison: performance, cores, frequencies.
Advantages
A
Core Ultra 5 125U
- + Normalized score (+22.0)
B
Core Ultra 7 255U
- + Release year (+2)
- + Base clock (GHz) (+2.50 GHz)
- + Boost clock (GHz) (+0.90 GHz)
- + Lithography (nm) (-2 nm)
Detailed spec comparison
| Spec |
Component A
Core Ultra 5 125U
|
Component B
Core Ultra 7 255U
|
|---|---|---|
| Release year | 2023 | 2025 (+2) |
| Cores | 12 | 12 |
| Threads | 14 | 14 |
| Base clock (GHz) | 1.30 GHz | 3.80 GHz (+2.50 GHz) |
| Boost clock (GHz) | 4.30 GHz | 5.20 GHz (+0.90 GHz) |
| L1 cache (KB) | 96 KB | — |
| L2 cache (KB) | 2 KB | — |
| L3 cache (MB) | 12 MB | 12 MB |
| Bandwidth (GB/s) | 89 GB/s | — |
| Memory channels | 2 | — |
| Max memory (GB) | 96 GB | — |
| TGP / TDP (W) | 15 W | 15 W |
| Lithography (nm) | 7 nm | 5 nm (-2 nm) |
| Critical temp (°C) | 110 °C | 110 °C |
| PassMark (overall) | — | 17,902 |
| PassMark (single-thread) | — | — |
| Geekbench 5 (single-core) | 1,840 | — |
| Geekbench 5 (multi-core) | 7,570 | — |
| Normalized score | 74.2 (+22.0) | 52.3 |
In both
AVX
AVX2
AES-NI
VT-x
VT-d
Based on the comparison:
Core Ultra 7 255U wins 4 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).