Intel Core Ultra 7 251HX vs NVIDIA RTX Spark N1X
66.6Single-core—
65.1Multi-core—
44.4Efficiencyspec-based56
68.1Platformspec-based64.4
3 spec wins — Intel Core Ultra 7 251HX4 spec wins — NVIDIA RTX Spark N1X
InnoReviews verdict
No overall winner yet: NVIDIA RTX Spark N1X lacks the published benchmark results an Inno Score requires, so there is no Inno Score to compare — we don't rank chips on their spec sheet alone. The spec table below still shows every difference we track.
Which would you pick?
Key differences
Reasons to pick the Intel Core Ultra 7 251HX
- 100% higher Max TDP: 160 W vs 80 W
- 100% higher Max memory: 256 GB vs 128 GB
- 20% higher Efficiency cores: 12 vs 10
Reasons to pick the NVIDIA RTX Spark N1X
- 67% higher Performance cores: 10 vs 6
- 18% lower Base TDP: 45 W vs 55 W
- 11% higher cores: 20 vs 18
- 11% higher threads: 20 vs 18
General
| Spec | Intel Core Ultra 7 251HX | NVIDIA RTX Spark N1X |
|---|---|---|
| Announced | 2026 | 2026 |
| Process | 3 nm | 3 nm |
| Base TDP | 55 W | 45 W+18% |
| Max TDP | 160 W+100% | 80 W |
Cores & Clocks
| Spec | Intel Core Ultra 7 251HX | NVIDIA RTX Spark N1X |
|---|---|---|
| Cores | 18 | 20+11% |
| Performance cores | 6 | 10+67% |
| Efficiency cores | 12+20% | 10 |
| Threads | 18 | 20+11% |
| Base clock | 2.9 GHz | — |
| Boost clock | 5.1 GHz | — |
| L3 cache | 30 MB | — |
Integrated GPU
| Spec | Intel Core Ultra 7 251HX | NVIDIA RTX Spark N1X |
|---|---|---|
| iGPU | Intel Graphics (3 Xe) | NVIDIA Blackwell RTX 6144-core GPU |
| iGPU clock | 1,800 MHz | — |
Memory
| Spec | Intel Core Ultra 7 251HX | NVIDIA RTX Spark N1X |
|---|---|---|
| Memory support | DDR5-6400 | LPDDR5X |
| Max memory | 256 GB+100% | 128 GB |
Benchmarks
| Spec | Intel Core Ultra 7 251HX | NVIDIA RTX Spark N1X |
|---|---|---|
| Geekbench 6 (single) | 2,762Top 29% | — |
| Geekbench 6 (multi) | 14,233Top 27% | — |
| Cinebench R23 (single) | 1,941Top 25% | — |
| Cinebench R23 (multi) | 26,001Top 11% | — |
| PassMark | 47,051Top 8% | — |
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