Intel Core i5-6600K vs Intel Core Ultra 9 285
29Single-core84.7
24Multi-core86.9
23.8Gamingspec-based70.7
2 spec wins — Intel Core i5-6600K16 spec wins — Intel Core Ultra 9 285
InnoReviews verdict
Intel Core Ultra 9 285 wins this desktop processor face-off, 82.2 to 25.4, pulling ahead mainly in multi-core (+63) and single-core (+56). Intel Core i5-6600K 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 i5-6600K
- 40% higher Base clock: 3.5 GHz vs 2.5 GHz
- Has Unlocked multiplier — the other doesn't
- Lower launch price: $242 vs $549
Reasons to pick the Intel Core Ultra 9 285
- Stronger single-core score: 85 vs 29
- Stronger multi-core score: 87 vs 24
- 3900% higher L2 cache: 40 MB vs 1 MB
- 803% higher PassMark: 57,762 vs 6,400
- 500% higher cores: 24 vs 4
General
| Spec | Intel Core i5-6600K | Intel Core Ultra 9 285 |
|---|---|---|
| Announced | 2015 | 2025 |
| Socket | LGA1151 | LGA1851 |
| Process | 14 nm | 3 nm+79% |
| Base TDP | 91 W | 65 W+29% |
| Max turbo power | — | 182 W |
| Unlocked multiplier | Yes | No |
| Cooler included | No | — |
Cores & Clocks
| Spec | Intel Core i5-6600K | Intel Core Ultra 9 285 |
|---|---|---|
| Cores | 4 | 24+500% |
| Performance cores | 4 | 8+100% |
| Efficiency cores | 0 | 16 |
| Threads | 4 | 24+500% |
| Base clock | 3.5 GHz+40% | 2.5 GHz |
| Boost clock | 3.9 GHz | 5.6 GHz+44% |
| L2 cache | 1 MB | 40 MB+3900% |
| L3 cache | 6 MB | 36 MB+500% |
Integrated GPU
| Spec | Intel Core i5-6600K | Intel Core Ultra 9 285 |
|---|---|---|
| iGPU | Intel HD Graphics 530 | Intel Graphics |
| iGPU clock | 1,150 MHz | 2,000 MHz |
Memory
| Spec | Intel Core i5-6600K | Intel Core Ultra 9 285 |
|---|---|---|
| Memory support | DDR4-2133 / DDR3L-1600 | DDR5-6400 |
| Max memory | 64 GB | 256 GB+300% |
| Memory channels | 2 | 2 |
Platform
| Spec | Intel Core i5-6600K | Intel Core Ultra 9 285 |
|---|---|---|
| PCIe version | 3 | 5+67% |
| CPU PCIe lanes | 16 | 24+50% |
Benchmarks
| Spec | Intel Core i5-6600K | Intel Core Ultra 9 285 |
|---|---|---|
| Geekbench 6 (single) | 1,300Bottom 19% | 3,061+135%Top 16% |
| Geekbench 6 (multi) | 3,350Bottom 9% | 19,926+495%Top 13% |
| Cinebench R23 (single) | 1,110Bottom 18% | — |
| Cinebench R23 (multi) | 4,050Bottom 10% | — |
| PassMark | 6,400Bottom 8% | 57,762+803%Top 11% |
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