Intel Core Ultra 7 155H vs Intel Core Ultra X9 388H
56.9Single-core74.6
48.3Multi-core61.3
66.9Efficiencyspec-based81.4
72.7iGPU88.3
63.1Platformspec-based56.4
4 spec wins — Intel Core Ultra 7 155H12 spec wins — Intel Core Ultra X9 388H
InnoReviews verdict
Intel Core Ultra X9 388H wins this laptop processor face-off, 69.6 to 57.9, pulling ahead mainly in single-core (+18) and iGPU (+16). Intel Core Ultra 7 155H 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 155H
- 50% higher Performance cores: 6 vs 4
- 44% higher Max TDP: 115 W vs 80 W
- 38% higher threads: 22 vs 16
- 33% higher L3 cache: 24 MB vs 18 MB
Reasons to pick the Intel Core Ultra X9 388H
- Stronger single-core score: 75 vs 57
- Stronger multi-core score: 61 vs 48
- Stronger iGPU score: 88 vs 73
- 102% higher 3DMark Time Spy Graphics (iGPU): 6,501 vs 3,225
- 71% lower process: 2 nm vs 7 nm
General
| Spec | Intel Core Ultra 7 155H | Intel Core Ultra X9 388H |
|---|---|---|
| Announced | 2023 | 2026 |
| Process | 7 nm | 2 nm+71% |
| Base TDP | 28 W | 25 W+11% |
| Max TDP | 115 W+44% | 80 W |
Cores & Clocks
| Spec | Intel Core Ultra 7 155H | Intel Core Ultra X9 388H |
|---|---|---|
| Cores | 16 | 16 |
| Performance cores | 6+50% | 4 |
| Efficiency cores | 10 | 12+20% |
| Threads | 22+38% | 16 |
| Base clock | 1.4 GHz | 2.1 GHz+50% |
| Boost clock | 4.8 GHz | 5.1 GHz+6% |
| L3 cache | 24 MB+33% | 18 MB |
Integrated GPU
| Spec | Intel Core Ultra 7 155H | Intel Core Ultra X9 388H |
|---|---|---|
| iGPU | Intel Arc Graphics (8 Xe) | Intel Arc B390 |
| iGPU clock | 2,250 MHz | 2,500 MHz |
Memory
| Spec | Intel Core Ultra 7 155H | Intel Core Ultra X9 388H |
|---|---|---|
| Memory support | LPDDR5X-7467 / DDR5-5600 | LPDDR5X |
| Max memory | 96 GB | 96 GB |
Benchmarks
| Spec | Intel Core Ultra 7 155H | Intel Core Ultra X9 388H |
|---|---|---|
| Geekbench 6 (single) | 2,320Bottom 32% | 3,038+31%Top 15% |
| Geekbench 6 (multi) | 12,100Top 46% | 17,395+44%Top 13% |
| Cinebench R23 (single) | 1,700Bottom 45% | 2,201+29%Top 6% |
| Cinebench R23 (multi) | 14,900Top 35% | 18,911+27%Top 19% |
| PassMark | 24,448Top 38% | 36,409+49%Top 15% |
| 3DMark Time Spy Graphics (iGPU) | 3,225Top 13% | 6,501+102%Top 3% |
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