Intel Core Ultra 7 255H vs Intel Core Ultra X7 358H
69.7Single-core70
56.8Multi-core58.6
75.7Efficiencyspec-based81.4
75.9iGPU88.9
60.5Platformspec-based56.4
7 spec wins — Intel Core Ultra 7 255H9 spec wins — Intel Core Ultra X7 358H
InnoReviews verdict
Intel Core Ultra X7 358H wins this laptop processor face-off, 67.6 to 65.3, pulling ahead mainly in iGPU (+13) and multi-core (+2). Intel Core Ultra 7 255H 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 255H
- 50% higher Performance cores: 6 vs 4
- 44% higher Max TDP: 115 W vs 80 W
- 33% higher L3 cache: 24 MB vs 18 MB
- 33% higher Max memory: 128 GB vs 96 GB
Reasons to pick the Intel Core Ultra X7 358H
- Stronger iGPU score: 89 vs 76
- 79% higher 3DMark Time Spy Graphics (iGPU): 6,664 vs 3,719
- 33% lower process: 2 nm vs 3 nm
- 20% higher Efficiency cores: 12 vs 10
- 11% lower Base TDP: 25 W vs 28 W
General
| Spec | Intel Core Ultra 7 255H | Intel Core Ultra X7 358H |
|---|---|---|
| Announced | 2025 | 2026 |
| Process | 3 nm | 2 nm+33% |
| Base TDP | 28 W | 25 W+11% |
| Max TDP | 115 W+44% | 80 W |
Cores & Clocks
| Spec | Intel Core Ultra 7 255H | Intel Core Ultra X7 358H |
|---|---|---|
| Cores | 16 | 16 |
| Performance cores | 6+50% | 4 |
| Efficiency cores | 10 | 12+20% |
| Threads | 16 | 16 |
| Base clock | 2 GHz+5% | 1.9 GHz |
| Boost clock | 5.1 GHz+6% | 4.8 GHz |
| L3 cache | 24 MB+33% | 18 MB |
Integrated GPU
| Spec | Intel Core Ultra 7 255H | Intel Core Ultra X7 358H |
|---|---|---|
| iGPU | Intel Arc 140T | Intel Arc B390 |
| iGPU clock | 2,250 MHz | 2,500 MHz |
Memory
| Spec | Intel Core Ultra 7 255H | Intel Core Ultra X7 358H |
|---|---|---|
| Memory support | LPDDR5X-8400 / DDR5-6400 | LPDDR5X-9600 |
| Max memory | 128 GB+33% | 96 GB |
Benchmarks
| Spec | Intel Core Ultra 7 255H | Intel Core Ultra X7 358H |
|---|---|---|
| Geekbench 6 (single) | 2,851Top 25% | 2,865Top 23% |
| Geekbench 6 (multi) | 15,362Top 20% | 16,398+7%Top 17% |
| Cinebench R23 (single) | 2,055Top 17% | 2,061Top 15% |
| Cinebench R23 (multi) | 18,624+3%Top 20% | 18,086Top 23% |
| PassMark | 30,782Top 21% | 33,516+9%Top 19% |
| 3DMark Time Spy Graphics (iGPU) | 3,719Top 7% | 6,664+79%Top 2% |
Related comparisons
Intel Core Ultra 7 255Hvs Apple M4 (10-core)VSIntel Core Ultra 7 255Hvs AMD Ryzen 9 7940HXVSIntel Core Ultra 7 255Hvs AMD Ryzen 9 7945HXVSIntel Core Ultra 7 255Hvs AMD Ryzen AI 9 365VSIntel Core Ultra X7 358Hvs AMD Ryzen AI 9 HX 470VSIntel Core Ultra X7 358Hvs Intel Core Ultra 7 255HXVSIntel Core Ultra X7 358Hvs Qualcomm Snapdragon X2 Elite X2E-80-100VSIntel Core Ultra X7 358Hvs Intel Core Ultra 7 356HVS