Intel Core Ultra 7 251HX vs Intel Processor U300
66.6Single-core52.1
65.1Multi-core27.3
44.4Efficiencyspec-based75.3
—iGPU36.9
68.1Platformspec-based42.7
16 spec wins — Intel Core Ultra 7 251HX1 spec wins — Intel Processor U300
InnoReviews verdict
Intel Core Ultra 7 251HX wins this laptop processor face-off, 62.6 to 44, pulling ahead mainly in multi-core (+38) and single-core (+14). 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 251HX
- Stronger single-core score: 67 vs 52
- Stronger multi-core score: 65 vs 27
- 500% higher Performance cores: 6 vs 1
- 437% higher PassMark: 47,051 vs 8,758
- 430% higher Cinebench R23 (multi): 26,001 vs 4,905
Reasons to pick the Intel Processor U300
- 73% lower Base TDP: 15 W vs 55 W
General
| Spec | Intel Core Ultra 7 251HX | Intel Processor U300 |
|---|---|---|
| Announced | 2026 | 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 251HX | Intel Processor U300 |
|---|---|---|
| Cores | 18+260% | 5 |
| Performance cores | 6+500% | 1 |
| Efficiency cores | 12+200% | 4 |
| Threads | 18+200% | 6 |
| Base clock | 2.9 GHz+142% | 1.2 GHz |
| Boost clock | 5.1 GHz+16% | 4.4 GHz |
| L3 cache | 30 MB+275% | 8 MB |
Integrated GPU
| Spec | Intel Core Ultra 7 251HX | Intel Processor U300 |
|---|---|---|
| iGPU | Intel Graphics (3 Xe) | Intel UHD Graphics (48 EU) |
| iGPU clock | 1,800 MHz | 1,100 MHz |
Memory
| Spec | Intel Core Ultra 7 251HX | 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 251HX | Intel Processor U300 |
|---|---|---|
| Geekbench 6 (single) | 2,762+35%Top 30% | 2,041Bottom 18% |
| Geekbench 6 (multi) | 14,233+226%Top 28% | 4,369Bottom 5% |
| Cinebench R23 (single) | 1,941+20%Top 26% | 1,616Bottom 37% |
| Cinebench R23 (multi) | 26,001+430%Top 12% | 4,905Bottom 11% |
| PassMark | 47,051+437%Top 8% | 8,758Bottom 12% |
| 3DMark Time Spy Graphics (iGPU) | — | 643Bottom 22% |
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