Intel Core Ultra 7 251HX vs Intel Core Ultra 7 256V
66.6Single-core65.3
65.1Multi-core42.2
44.4Efficiencyspec-based88.5
—iGPU76.9
68.1Platformspec-based35.9
15 spec wins — Intel Core Ultra 7 251HX1 spec wins — Intel Core Ultra 7 256V
InnoReviews verdict
Intel Core Ultra 7 251HX wins this laptop processor face-off, 62.6 to 57.4, pulling ahead mainly in multi-core (+23) and single-core (+1). Intel Core Ultra 7 256V 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 multi-core score: 65 vs 42
- 1500% higher Max memory: 256 GB vs 16 GB
- 332% higher Max TDP: 160 W vs 37 W
- 200% higher Efficiency cores: 12 vs 4
- 154% higher Cinebench R23 (multi): 26,001 vs 10,244
Reasons to pick the Intel Core Ultra 7 256V
- 69% lower Base TDP: 17 W vs 55 W
General
| Spec | Intel Core Ultra 7 251HX | Intel Core Ultra 7 256V |
|---|---|---|
| Announced | 2026 | 2024 |
| Process | 3 nm | 3 nm |
| Base TDP | 55 W | 17 W+69% |
| Max TDP | 160 W+332% | 37 W |
Cores & Clocks
| Spec | Intel Core Ultra 7 251HX | Intel Core Ultra 7 256V |
|---|---|---|
| Cores | 18+125% | 8 |
| Performance cores | 6+50% | 4 |
| Efficiency cores | 12+200% | 4 |
| Threads | 18+125% | 8 |
| Base clock | 2.9 GHz+32% | 2.2 GHz |
| Boost clock | 5.1 GHz+6% | 4.8 GHz |
| L3 cache | 30 MB+150% | 12 MB |
Integrated GPU
| Spec | Intel Core Ultra 7 251HX | Intel Core Ultra 7 256V |
|---|---|---|
| iGPU | Intel Graphics (3 Xe) | Intel Arc 140V |
| iGPU clock | 1,800 MHz | 1,950 MHz |
Memory
| Spec | Intel Core Ultra 7 251HX | Intel Core Ultra 7 256V |
|---|---|---|
| Memory support | DDR5-6400 | LPDDR5X-8533 (on-package) |
| Max memory | 256 GB+1500% | 16 GB |
Benchmarks
| Spec | Intel Core Ultra 7 251HX | Intel Core Ultra 7 256V |
|---|---|---|
| Geekbench 6 (single) | 2,762Top 33% | 2,753Top 35% |
| Geekbench 6 (multi) | 14,233+31%Top 30% | 10,850Bottom 47% |
| Cinebench R23 (single) | 1,941+3%Top 26% | 1,876Top 31% |
| Cinebench R23 (multi) | 26,001+154%Top 12% | 10,244Bottom 41% |
| PassMark | 47,051+142%Top 8% | 19,478Bottom 49% |
| 3DMark Time Spy Graphics (iGPU) | — | 3,883Top 4% |
Related comparisons
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