Intel Core i7-8550U vs Intel Core Ultra 7 255H
37.7Single-core69.7
23.8Multi-core56.8
66.4Efficiencyspec-based75.7
25.8iGPU75.9
37.2Platformspec-based60.5
1 spec wins — Intel Core i7-8550U13 spec wins — Intel Core Ultra 7 255H
InnoReviews verdict
Intel Core Ultra 7 255H wins this laptop processor face-off, 65.3 to 35.9, pulling ahead mainly in iGPU (+50) and multi-core (+33). Intel Core i7-8550U 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 i7-8550U
- 46% lower Base TDP: 15 W vs 28 W
Reasons to pick the Intel Core Ultra 7 255H
- Stronger single-core score: 70 vs 38
- Stronger multi-core score: 57 vs 24
- Stronger iGPU score: 76 vs 26
- 856% higher 3DMark Time Spy Graphics (iGPU): 3,719 vs 389
- 539% higher Cinebench R23 (multi): 18,624 vs 2,914
General
| Spec | Intel Core i7-8550U | Intel Core Ultra 7 255H |
|---|---|---|
| Announced | 2017 | 2025 |
| Process | 14 nm | 3 nm+79% |
| Base TDP | 15 W+46% | 28 W |
| Max TDP | 25 W | 115 W+360% |
Cores & Clocks
| Spec | Intel Core i7-8550U | Intel Core Ultra 7 255H |
|---|---|---|
| Cores | 4 | 16+300% |
| Performance cores | — | 6 |
| Efficiency cores | — | 10 |
| Threads | 8 | 16+100% |
| Base clock | 1.8 GHz | 2 GHz+11% |
| Boost clock | 4 GHz | 5.1 GHz+27% |
| L3 cache | 8 MB | 24 MB+200% |
Integrated GPU
| Spec | Intel Core i7-8550U | Intel Core Ultra 7 255H |
|---|---|---|
| iGPU | Intel UHD Graphics 620 | Intel Arc 140T |
| iGPU clock | 1,150 MHz | 2,250 MHz |
Memory
| Spec | Intel Core i7-8550U | Intel Core Ultra 7 255H |
|---|---|---|
| Memory support | DDR4-2400 / LPDDR3-2133 | LPDDR5X-8400 / DDR5-6400 |
| Max memory | 32 GB | 128 GB+300% |
Benchmarks
| Spec | Intel Core i7-8550U | Intel Core Ultra 7 255H |
|---|---|---|
| Geekbench 6 (single) | — | 2,851Top 29% |
| Geekbench 6 (multi) | — | 15,362Top 23% |
| Cinebench R23 (single) | 1,021Bottom 10% | 2,055+101%Top 18% |
| Cinebench R23 (multi) | 2,914Bottom 6% | 18,624+539%Top 20% |
| PassMark | 5,794Bottom 8% | 30,782+431%Top 21% |
| 3DMark Time Spy Graphics (iGPU) | 389Bottom 8% | 3,719+856%Top 7% |
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