Intel Core i7-8565U vs Intel Core Ultra 7 255HX
—Single-core72.8
24Multi-core73.8
66.4Efficiencyspec-based44.4
25.8iGPU—
41.6Platformspec-based69.6
1 spec wins — Intel Core i7-8565U12 spec wins — Intel Core Ultra 7 255HX
InnoReviews verdict
No overall winner yet: Intel Core i7-8565U lacks the published benchmark results an Inno Score requires, so there is no Inno Score to compare — we don't rank chips on their spec sheet alone. The spec table below still shows every difference we track.
Which would you pick?
Key differences
Reasons to pick the Intel Core i7-8565U
- 73% lower Base TDP: 15 W vs 55 W
Reasons to pick the Intel Core Ultra 7 255HX
- Stronger multi-core score: 74 vs 24
- 708% higher PassMark: 47,933 vs 5,935
- 540% higher Max TDP: 160 W vs 25 W
- 400% higher cores: 20 vs 4
- 300% higher Max memory: 256 GB vs 64 GB
General
| Spec | Intel Core i7-8565U | Intel Core Ultra 7 255HX |
|---|---|---|
| Announced | 2018 | 2025 |
| Process | 14 nm | 3 nm+79% |
| Base TDP | 15 W+73% | 55 W |
| Max TDP | 25 W | 160 W+540% |
Cores & Clocks
| Spec | Intel Core i7-8565U | Intel Core Ultra 7 255HX |
|---|---|---|
| Cores | 4 | 20+400% |
| Performance cores | 4 | 8+100% |
| Efficiency cores | 0 | 12 |
| Threads | 8 | 20+150% |
| Base clock | 1.8 GHz | 2.4 GHz+33% |
| Boost clock | 4.6 GHz | 5.2 GHz+13% |
| L3 cache | 8 MB | 30 MB+275% |
Integrated GPU
| Spec | Intel Core i7-8565U | Intel Core Ultra 7 255HX |
|---|---|---|
| iGPU | Intel UHD Graphics 620 | Intel Graphics (4 Xe-cores) |
| iGPU clock | 1,150 MHz | 1,850 MHz |
Memory
| Spec | Intel Core i7-8565U | Intel Core Ultra 7 255HX |
|---|---|---|
| Memory support | DDR4-2400 / LPDDR3-2133 | DDR5-6400 |
| Max memory | 64 GB | 256 GB+300% |
Benchmarks
| Spec | Intel Core i7-8565U | Intel Core Ultra 7 255HX |
|---|---|---|
| Geekbench 6 (single) | — | 2,959Top 17% |
| Geekbench 6 (multi) | — | 17,915Top 12% |
| Cinebench R23 (single) | — | 2,154Top 10% |
| Cinebench R23 (multi) | — | 31,781Top 6% |
| PassMark | 5,935Bottom 8% | 47,933+708%Top 8% |
| 3DMark Time Spy Graphics (iGPU) | 389Bottom 7% | — |
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