Intel Core i5-8600K vs Intel Core Ultra 9 285
34.5Single-core84.7
30Multi-core86.9
29.1Gamingspec-based70.7
2 spec wins — Intel Core i5-8600K16 spec wins — Intel Core Ultra 9 285
InnoReviews verdict
Intel Core Ultra 9 285 wins this desktop processor face-off, 82.2 to 31.1, pulling ahead mainly in multi-core (+57) and single-core (+50). Intel Core i5-8600K 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 i5-8600K
- 44% higher Base clock: 3.6 GHz vs 2.5 GHz
- Has Unlocked multiplier — the other doesn't
- Lower launch price: $257 vs $549
Reasons to pick the Intel Core Ultra 9 285
- Stronger single-core score: 85 vs 35
- Stronger multi-core score: 87 vs 30
- 2567% higher L2 cache: 40 MB vs 2 MB
- 445% higher PassMark: 57,762 vs 10,600
- 300% higher cores: 24 vs 6
General
| Spec | Intel Core i5-8600K | Intel Core Ultra 9 285 |
|---|---|---|
| Announced | 2017 | 2025 |
| Socket | LGA1151-v2 | LGA1851 |
| Process | 14 nm | 3 nm+79% |
| Base TDP | 95 W | 65 W+32% |
| Max turbo power | — | 182 W |
| Unlocked multiplier | Yes | No |
| Cooler included | No | — |
Cores & Clocks
| Spec | Intel Core i5-8600K | Intel Core Ultra 9 285 |
|---|---|---|
| Cores | 6 | 24+300% |
| Performance cores | 6 | 8+33% |
| Efficiency cores | 0 | 16 |
| Threads | 6 | 24+300% |
| Base clock | 3.6 GHz+44% | 2.5 GHz |
| Boost clock | 4.3 GHz | 5.6 GHz+30% |
| L2 cache | 2 MB | 40 MB+2567% |
| L3 cache | 9 MB | 36 MB+300% |
Integrated GPU
| Spec | Intel Core i5-8600K | Intel Core Ultra 9 285 |
|---|---|---|
| iGPU | Intel UHD Graphics 630 | Intel Graphics |
| iGPU clock | 1,150 MHz | 2,000 MHz |
Memory
| Spec | Intel Core i5-8600K | Intel Core Ultra 9 285 |
|---|---|---|
| Memory support | DDR4-2666 | DDR5-6400 |
| Max memory | 64 GB | 256 GB+300% |
| Memory channels | 2 | 2 |
Platform
| Spec | Intel Core i5-8600K | Intel Core Ultra 9 285 |
|---|---|---|
| PCIe version | 3 | 5+67% |
| CPU PCIe lanes | 16 | 24+50% |
Benchmarks
| Spec | Intel Core i5-8600K | Intel Core Ultra 9 285 |
|---|---|---|
| Geekbench 6 (single) | 1,480Bottom 27% | 3,061+107%Top 16% |
| Geekbench 6 (multi) | 5,400Bottom 26% | 19,926+269%Top 13% |
| Cinebench R23 (single) | 1,210Bottom 25% | — |
| Cinebench R23 (multi) | 6,800Bottom 22% | — |
| PassMark | 10,600Bottom 16% | 57,762+445%Top 11% |
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