Intel Core i7-1255U vs NVIDIA RTX Spark N1X (18-core)
54.9Single-core46.9
35.3Multi-core49.6
75.3Efficiencyspec-based56
56.6iGPU—
47.7Platformspec-based48.9
4 spec wins — Intel Core i7-1255U8 spec wins — NVIDIA RTX Spark N1X (18-core)
InnoReviews verdict
This one is close to a dead heat: Intel Core i7-1255U scores 50.2 against 49.8 for NVIDIA RTX Spark N1X (18-core). Pick by the categories that matter to you — Intel Core i7-1255U edges ahead in single-core, or by price.
Which would you pick?
Key differences
Reasons to pick the Intel Core i7-1255U
- Stronger single-core score: 55 vs 47
- 100% higher Max memory: 64 GB vs 32 GB
- 67% lower Base TDP: 15 W vs 45 W
- 33% higher Cinebench R23 (single): 1,650 vs 1,238
- 21% higher Boost clock: 4.7 GHz vs 3.9 GHz
Reasons to pick the NVIDIA RTX Spark N1X (18-core)
- Stronger multi-core score: 50 vs 35
- 350% higher Performance cores: 9 vs 2
- 94% higher Cinebench R23 (multi): 16,160 vs 8,309
- 80% higher cores: 18 vs 10
- 70% lower process: 3 nm vs 10 nm
General
| Spec | Intel Core i7-1255U | NVIDIA RTX Spark N1X (18-core) |
|---|---|---|
| Announced | 2022 | 2026 |
| Process | 10 nm | 3 nm+70% |
| Base TDP | 15 W+67% | 45 W |
| Max TDP | 55 W | 80 W+45% |
Cores & Clocks
| Spec | Intel Core i7-1255U | NVIDIA RTX Spark N1X (18-core) |
|---|---|---|
| Cores | 10 | 18+80% |
| Performance cores | 2 | 9+350% |
| Efficiency cores | 8 | 9+13% |
| Threads | 12 | 18+50% |
| Base clock | 1.7 GHz | — |
| Boost clock | 4.7 GHz+21% | 3.9 GHz |
| L3 cache | 12 MB | — |
Integrated GPU
| Spec | Intel Core i7-1255U | NVIDIA RTX Spark N1X (18-core) |
|---|---|---|
| iGPU | Intel Iris Xe (96 EU) | NVIDIA Blackwell RTX 5120-core GPU |
| iGPU clock | 1,250 MHz | 2,535 MHz |
Memory
| Spec | Intel Core i7-1255U | NVIDIA RTX Spark N1X (18-core) |
|---|---|---|
| Memory support | LPDDR5-5200 / DDR5-4800 / LPDDR4X-4267 | LPDDR5X |
| Max memory | 64 GB+100% | 32 GB |
Benchmarks
| Spec | Intel Core i7-1255U | NVIDIA RTX Spark N1X (18-core) |
|---|---|---|
| Geekbench 6 (single) | 2,227Bottom 21% | — |
| Geekbench 6 (multi) | 7,914Bottom 18% | — |
| Cinebench R23 (single) | 1,650+33%Bottom 32% | 1,238Bottom 11% |
| Cinebench R23 (multi) | 8,309Bottom 18% | 16,160+94%Top 37% |
| PassMark | 12,941Bottom 15% | — |
| PassMark (single thread) | 3,144Bottom 20% | — |
| 3DMark Time Spy Graphics (iGPU) | 1,561Top 50% | — |
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