Intel Core Ultra 7 155U vs Intel Core Ultra X9 388H
54.1Single-core74.6
38.4Multi-core61.3
81.9Efficiencyspec-based81.4
—iGPU88.3
51.8Platformspec-based56.4
1 spec wins — Intel Core Ultra 7 155U15 spec wins — Intel Core Ultra X9 388H
InnoReviews verdict
Intel Core Ultra X9 388H wins this laptop processor face-off, 69.6 to 52.3, pulling ahead mainly in multi-core (+23) and single-core (+20). Intel Core Ultra 7 155U 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 155U
- 40% lower Base TDP: 15 W vs 25 W
Reasons to pick the Intel Core Ultra X9 388H
- Stronger single-core score: 75 vs 54
- Stronger multi-core score: 61 vs 38
- 126% higher PassMark: 36,409 vs 16,133
- 100% higher Performance cores: 4 vs 2
- 96% higher Cinebench R23 (multi): 18,911 vs 9,627
General
| Spec | Intel Core Ultra 7 155U | Intel Core Ultra X9 388H |
|---|---|---|
| Announced | 2023 | 2026 |
| Process | 7 nm | 2 nm+71% |
| Base TDP | 15 W+40% | 25 W |
| Max TDP | 57 W | 80 W+40% |
Cores & Clocks
| Spec | Intel Core Ultra 7 155U | Intel Core Ultra X9 388H |
|---|---|---|
| Cores | 12 | 16+33% |
| Performance cores | 2 | 4+100% |
| Efficiency cores | 10 | 12+20% |
| Threads | 14 | 16+14% |
| Base clock | 1.7 GHz | 2.1 GHz+24% |
| Boost clock | 4.8 GHz | 5.1 GHz+6% |
| L3 cache | 12 MB | 18 MB+50% |
Integrated GPU
| Spec | Intel Core Ultra 7 155U | Intel Core Ultra X9 388H |
|---|---|---|
| iGPU | Intel Graphics (4 Xe) | Intel Arc B390 |
| iGPU clock | 1,950 MHz | 2,500 MHz |
Memory
| Spec | Intel Core Ultra 7 155U | Intel Core Ultra X9 388H |
|---|---|---|
| Memory support | LPDDR5X-7467 / DDR5-5600 | LPDDR5X |
| Max memory | 96 GB | 96 GB |
Benchmarks
| Spec | Intel Core Ultra 7 155U | Intel Core Ultra X9 388H |
|---|---|---|
| Geekbench 6 (single) | 2,195Bottom 30% | 3,038+38%Top 19% |
| Geekbench 6 (multi) | 8,981Bottom 31% | 17,395+94%Top 16% |
| Cinebench R23 (single) | 1,627Bottom 44% | 2,201+35%Top 7% |
| Cinebench R23 (multi) | 9,627Bottom 37% | 18,911+96%Top 19% |
| PassMark | 16,133Bottom 34% | 36,409+126%Top 16% |
| 3DMark Time Spy Graphics (iGPU) | — | 6,501Top 3% |
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