Intel Core i7-8565U vs Intel Core Ultra 7 251HX
—Single-core66.6
24Multi-core65.1
66.4Efficiencyspec-based44.4
25.8iGPU—
41.6Platformspec-based68.1
1 spec wins — Intel Core i7-8565U12 spec wins — Intel Core Ultra 7 251HX
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 251HX
- Stronger multi-core score: 65 vs 24
- 693% higher PassMark: 47,051 vs 5,935
- 540% higher Max TDP: 160 W vs 25 W
- 350% higher cores: 18 vs 4
- 300% higher Max memory: 256 GB vs 64 GB
General
| Spec | Intel Core i7-8565U | Intel Core Ultra 7 251HX |
|---|---|---|
| Announced | 2018 | 2026 |
| 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 251HX |
|---|---|---|
| Cores | 4 | 18+350% |
| Performance cores | 4 | 6+50% |
| Efficiency cores | 0 | 12 |
| Threads | 8 | 18+125% |
| Base clock | 1.8 GHz | 2.9 GHz+61% |
| Boost clock | 4.6 GHz | 5.1 GHz+11% |
| L3 cache | 8 MB | 30 MB+275% |
Integrated GPU
| Spec | Intel Core i7-8565U | Intel Core Ultra 7 251HX |
|---|---|---|
| iGPU | Intel UHD Graphics 620 | Intel Graphics (3 Xe) |
| iGPU clock | 1,150 MHz | 1,800 MHz |
Memory
| Spec | Intel Core i7-8565U | Intel Core Ultra 7 251HX |
|---|---|---|
| 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 251HX |
|---|---|---|
| Geekbench 6 (single) | — | 2,762Top 33% |
| Geekbench 6 (multi) | — | 14,233Top 30% |
| Cinebench R23 (single) | — | 1,941Top 26% |
| Cinebench R23 (multi) | — | 26,001Top 12% |
| PassMark | 5,935Bottom 9% | 47,051+693%Top 8% |
| 3DMark Time Spy Graphics (iGPU) | 389Bottom 8% | — |
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