Intel Core i5-8400 vs Intel Core i5-8600K
31.1Single-core34.5
28.6Multi-core30
27.2Gamingspec-based29.1
2 spec wins — Intel Core i5-84008 spec wins — Intel Core i5-8600K
InnoReviews verdict
Intel Core i5-8600K wins this desktop processor face-off, 31.1 to 29, pulling ahead mainly in single-core (+3) and multi-core (+1). Intel Core i5-8400 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 i5-8400
- 32% lower Base TDP: 65 W vs 95 W
- Has Cooler included — the other doesn't
- Lower launch price: $182 vs $257
Reasons to pick the Intel Core i5-8600K
- Stronger single-core score: 35 vs 31
- 29% higher Base clock: 3.6 GHz vs 2.8 GHz
- 15% higher PassMark: 10,600 vs 9,200
- 10% higher Geekbench 6 (multi): 5,400 vs 4,900
- Has Unlocked multiplier — the other doesn't
General
| Spec | Intel Core i5-8400 | Intel Core i5-8600K |
|---|---|---|
| Announced | 2017 | 2017 |
| Socket | LGA1151-v2 | LGA1151-v2 |
| Process | 14 nm | 14 nm |
| Base TDP | 65 W+32% | 95 W |
| Unlocked multiplier | No | Yes |
| Cooler included | Yes | No |
Cores & Clocks
| Spec | Intel Core i5-8400 | Intel Core i5-8600K |
|---|---|---|
| Cores | 6 | 6 |
| Performance cores | 6 | 6 |
| Efficiency cores | 0 | 0 |
| Threads | 6 | 6 |
| Base clock | 2.8 GHz | 3.6 GHz+29% |
| Boost clock | 4 GHz | 4.3 GHz+7% |
| L2 cache | 2 MB | 2 MB |
| L3 cache | 9 MB | 9 MB |
Integrated GPU
| Spec | Intel Core i5-8400 | Intel Core i5-8600K |
|---|---|---|
| iGPU | Intel UHD Graphics 630 | Intel UHD Graphics 630 |
| iGPU clock | 1,050 MHz | 1,150 MHz |
Memory
| Spec | Intel Core i5-8400 | Intel Core i5-8600K |
|---|---|---|
| Memory support | DDR4-2666 | DDR4-2666 |
| Max memory | 64 GB | 64 GB |
| Memory channels | 2 | 2 |
Platform
| Spec | Intel Core i5-8400 | Intel Core i5-8600K |
|---|---|---|
| PCIe version | 3 | 3 |
| CPU PCIe lanes | 16 | 16 |
Benchmarks
| Spec | Intel Core i5-8400 | Intel Core i5-8600K |
|---|---|---|
| Geekbench 6 (single) | 1,370Bottom 22% | 1,480+8%Bottom 26% |
| Geekbench 6 (multi) | 4,900Bottom 19% | 5,400+10%Bottom 26% |
| Cinebench R23 (single) | 1,150Bottom 22% | 1,210+5%Bottom 25% |
| Cinebench R23 (multi) | 6,400Bottom 19% | 6,800+6%Bottom 22% |
| PassMark | 9,200Bottom 14% | 10,600+15%Bottom 16% |
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