Intel Core i5-9400F vs Intel Core i7-6700K
26.8Single-core30.7
28.4Multi-core27
27.8Gamingspec-based25.6
9 spec wins — Intel Core i5-9400F6 spec wins — Intel Core i7-6700K
InnoReviews verdict
This one is close to a dead heat: Intel Core i5-9400F scores 27.8 against 27.7 for Intel Core i7-6700K. Pick by the categories that matter to you — Intel Core i5-9400F edges ahead in multi-core, or by price.
Which would you pick?
Key differences
Reasons to pick the Intel Core i5-9400F
- 100% higher Max memory: 128 GB vs 64 GB
- 50% higher cores: 6 vs 4
- 50% higher Performance cores: 6 vs 4
- 50% higher L2 cache: 1.5 MB vs 1 MB
- 29% lower Base TDP: 65 W vs 91 W
- Lower launch price: $157 vs $339
Reasons to pick the Intel Core i7-6700K
- Stronger single-core score: 31 vs 27
- 38% higher Base clock: 4 GHz vs 2.9 GHz
- 33% higher threads: 8 vs 6
- Has Unlocked multiplier — the other doesn't
General
| Spec | Intel Core i5-9400F | Intel Core i7-6700K |
|---|---|---|
| Announced | 2019 | 2015 |
| Socket | LGA1151-v2 | LGA1151 |
| Process | 14 nm | 14 nm |
| Base TDP | 65 W+29% | 91 W |
| Unlocked multiplier | No | Yes |
| Cooler included | Yes | No |
Cores & Clocks
| Spec | Intel Core i5-9400F | Intel Core i7-6700K |
|---|---|---|
| Cores | 6+50% | 4 |
| Performance cores | 6+50% | 4 |
| Efficiency cores | 0 | 0 |
| Threads | 6 | 8+33% |
| Base clock | 2.9 GHz | 4 GHz+38% |
| Boost clock | 4.1 GHz | 4.2 GHz+2% |
| L2 cache | 1.5 MB+50% | 1 MB |
| L3 cache | 9 MB+13% | 8 MB |
Integrated GPU
| Spec | Intel Core i5-9400F | Intel Core i7-6700K |
|---|---|---|
| iGPU | — | Intel HD Graphics 530 |
| iGPU clock | — | 1,150 MHz |
Memory
| Spec | Intel Core i5-9400F | Intel Core i7-6700K |
|---|---|---|
| Memory support | DDR4-2666 | DDR4-2133 / DDR3L-1600 |
| Max memory | 128 GB+100% | 64 GB |
| Memory channels | 2 | 2 |
Platform
| Spec | Intel Core i5-9400F | Intel Core i7-6700K |
|---|---|---|
| PCIe version | 3 | 3 |
| CPU PCIe lanes | 16 | 16 |
Benchmarks
| Spec | Intel Core i5-9400F | Intel Core i7-6700K |
|---|---|---|
| Geekbench 6 (single) | — | 1,420Bottom 23% |
| Geekbench 6 (multi) | — | 4,650Bottom 12% |
| Cinebench R23 (single) | 1,080Bottom 15% | 1,090+1%Bottom 16% |
| Cinebench R23 (multi) | 5,900Bottom 13% | — |
| PassMark | 9,463+6%Bottom 15% | 8,933Bottom 14% |
| PassMark (single thread) | 2,420Bottom 17% | 2,494+3%Bottom 19% |
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