Intel Core i5-6600K vs Intel Core i5-9400F
29Single-core30.1
24Multi-core27.9
23.8Gaming27.8
3 spec wins — Intel Core i5-6600K14 spec wins — Intel Core i5-9400F
InnoReviews verdict
Intel Core i5-9400F wins this desktop processor face-off, 28.5 to 25.4, pulling ahead mainly in gaming (+4) and Multi-core (+4). 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
- 21% higher Base clock: 3.5 GHz vs 2.9 GHz
- Has Unlocked multiplier — the other doesn't
Reasons to pick the Intel Core i5-9400F
- Stronger Multi-core score: 28 vs 24
- Stronger gaming score: 28 vs 24
- 100% higher Max memory: 128 GB vs 64 GB
- 50% higher cores: 6 vs 4
- 50% higher Performance cores: 6 vs 4
- Lower launch price: $157 vs $242
General
| Spec | Intel Core i5-6600K | Intel Core i5-9400F |
|---|---|---|
| Announced | 2015 | 2019 |
| Socket | LGA1151 | LGA1151-v2 |
| Process | 14 nm | 14 nm |
| Base TDP | 91 W | 65 W+29% |
| Unlocked multiplier | Yes | No |
| Cooler included | No | Yes |
Cores & Clocks
| Spec | Intel Core i5-6600K | Intel Core i5-9400F |
|---|---|---|
| Cores | 4 | 6+50% |
| Performance cores | 4 | 6+50% |
| Efficiency cores | 0 | 0 |
| Threads | 4 | 6+50% |
| Base clock | 3.5 GHz+21% | 2.9 GHz |
| Boost clock | 3.9 GHz | 4.1 GHz+5% |
| L2 cache | 1 MB | 2 MB+50% |
| L3 cache | 6 MB | 9 MB+50% |
Integrated GPU
| Spec | Intel Core i5-6600K | Intel Core i5-9400F |
|---|---|---|
| iGPU | Intel HD Graphics 530 | — |
| iGPU clock | 1,150 MHz | — |
Memory
| Spec | Intel Core i5-6600K | Intel Core i5-9400F |
|---|---|---|
| Memory support | DDR4-2133 / DDR3L-1600 | DDR4-2666 |
| Max memory | 64 GB | 128 GB+100% |
| Memory channels | 2 | 2 |
Platform
| Spec | Intel Core i5-6600K | Intel Core i5-9400F |
|---|---|---|
| PCIe version | 3 | 3 |
| CPU PCIe lanes | 16 | 16 |
Benchmarks
| Spec | Intel Core i5-6600K | Intel Core i5-9400F |
|---|---|---|
| Geekbench 6 (single) | 1,300Top 77% | 1,400+8%Top 72% |
| Geekbench 6 (multi) | 3,350Top 90% | 4,500+34%Top 82% |
| Cinebench R23 (single) | 1,110+3%Top 78% | 1,080Top 83% |
| Cinebench R23 (multi) | 4,050Top 90% | 5,900+46%Top 79% |
| PassMark | 6,400Top 89% | 9,300+45%Top 79% |
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