Intel Core i5-6600K vs Intel Core Ultra 5 245KF
29Single-core92.4
24Multi-core75.7
23.8Gamingspec-based58.4
1 spec wins — Intel Core i5-6600K16 spec wins — Intel Core Ultra 5 245KF
InnoReviews verdict
Intel Core Ultra 5 245KF wins this desktop processor face-off, 76.4 to 25.4, pulling ahead mainly in single-core (+63) and multi-core (+52). 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
- 27% lower Base TDP: 91 W vs 125 W
- Lower launch price: $242 vs $294
Reasons to pick the Intel Core Ultra 5 245KF
- Stronger single-core score: 92 vs 29
- Stronger multi-core score: 76 vs 24
- 2500% higher L2 cache: 26 MB vs 1 MB
- 573% higher PassMark: 43,046 vs 6,400
- 493% higher Geekbench 6 (multi): 19,856 vs 3,350
General
| Spec | Intel Core i5-6600K | Intel Core Ultra 5 245KF |
|---|---|---|
| Announced | 2015 | 2024 |
| Socket | LGA1151 | LGA1851 |
| Process | 14 nm | 3 nm+79% |
| Base TDP | 91 W+27% | 125 W |
| Max turbo power | — | 159 W |
| Unlocked multiplier | Yes | Yes |
| Cooler included | No | No |
Cores & Clocks
| Spec | Intel Core i5-6600K | Intel Core Ultra 5 245KF |
|---|---|---|
| Cores | 4 | 14+250% |
| Performance cores | 4 | 6+50% |
| Efficiency cores | 0 | 8 |
| Threads | 4 | 14+250% |
| Base clock | 3.5 GHz | 4.2 GHz+20% |
| Boost clock | 3.9 GHz | 5.2 GHz+33% |
| L2 cache | 1 MB | 26 MB+2500% |
| L3 cache | 6 MB | 24 MB+300% |
Integrated GPU
| Spec | Intel Core i5-6600K | Intel Core Ultra 5 245KF |
|---|---|---|
| iGPU | Intel HD Graphics 530 | — |
| iGPU clock | 1,150 MHz | — |
Memory
| Spec | Intel Core i5-6600K | Intel Core Ultra 5 245KF |
|---|---|---|
| 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 5 245KF |
|---|---|---|
| PCIe version | 3 | 5+67% |
| CPU PCIe lanes | 16 | 24+50% |
Benchmarks
| Spec | Intel Core i5-6600K | Intel Core Ultra 5 245KF |
|---|---|---|
| Geekbench 6 (single) | 1,300Bottom 19% | 3,307+154%Top 5% |
| Geekbench 6 (multi) | 3,350Bottom 9% | 19,856+493%Top 14% |
| Cinebench R23 (single) | 1,110Bottom 18% | — |
| Cinebench R23 (multi) | 4,050Bottom 10% | — |
| PassMark | 6,400Bottom 8% | 43,046+573%Top 23% |
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