Intel Core Ultra 7 255HX vs Intel Processor U300
72.8Single-core52.1
73.8Multi-core27.3
44.4Efficiencyspec-based75.3
—iGPU36.9
69.6Platformspec-based42.7
16 spec wins — Intel Core Ultra 7 255HX1 spec wins — Intel Processor U300
InnoReviews verdict
Intel Core Ultra 7 255HX wins this laptop processor face-off, 67.9 to 44, pulling ahead mainly in multi-core (+47) and single-core (+21). Intel Processor U300 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 Ultra 7 255HX
- Stronger single-core score: 73 vs 52
- Stronger multi-core score: 74 vs 27
- 700% higher Performance cores: 8 vs 1
- 548% higher Cinebench R23 (multi): 31,781 vs 4,905
- 447% higher PassMark: 47,933 vs 8,758
Reasons to pick the Intel Processor U300
- 73% lower Base TDP: 15 W vs 55 W
General
| Spec | Intel Core Ultra 7 255HX | Intel Processor U300 |
|---|---|---|
| Announced | 2025 | 2023 |
| Process | 3 nm+70% | 10 nm |
| Base TDP | 55 W | 15 W+73% |
| Max TDP | 160 W+191% | 55 W |
Cores & Clocks
| Spec | Intel Core Ultra 7 255HX | Intel Processor U300 |
|---|---|---|
| Cores | 20+300% | 5 |
| Performance cores | 8+700% | 1 |
| Efficiency cores | 12+200% | 4 |
| Threads | 20+233% | 6 |
| Base clock | 2.4 GHz+100% | 1.2 GHz |
| Boost clock | 5.2 GHz+18% | 4.4 GHz |
| L3 cache | 30 MB+275% | 8 MB |
Integrated GPU
| Spec | Intel Core Ultra 7 255HX | Intel Processor U300 |
|---|---|---|
| iGPU | Intel Graphics (4 Xe-cores) | Intel UHD Graphics (48 EU) |
| iGPU clock | 1,850 MHz | 1,100 MHz |
Memory
| Spec | Intel Core Ultra 7 255HX | Intel Processor U300 |
|---|---|---|
| Memory support | DDR5-6400 | DDR5-5200 / LPDDR5/X-5200 / DDR4-3200 / LPDDR4X-4267 |
| Max memory | 256 GB+167% | 96 GB |
Benchmarks
| Spec | Intel Core Ultra 7 255HX | Intel Processor U300 |
|---|---|---|
| Geekbench 6 (single) | 2,959+45%Top 17% | 2,041Bottom 18% |
| Geekbench 6 (multi) | 17,915+310%Top 12% | 4,369Bottom 5% |
| Cinebench R23 (single) | 2,154+33%Top 10% | 1,616Bottom 37% |
| Cinebench R23 (multi) | 31,781+548%Top 6% | 4,905Bottom 11% |
| PassMark | 47,933+447%Top 8% | 8,758Bottom 12% |
| 3DMark Time Spy Graphics (iGPU) | — | 643Bottom 22% |
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