Intel Core i5-8400 vs Intel Core i7-9700K
31.1Single-core39
28.6Multi-core35.5
27.2Gamingspec-based39.8
2 spec wins — Intel Core i5-840015 spec wins — Intel Core i7-9700K
InnoReviews verdict
Intel Core i7-9700K wins this desktop processor face-off, 37.6 to 29, pulling ahead mainly in single-core (+8) and multi-core (+7). 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 $374
Reasons to pick the Intel Core i7-9700K
- Stronger single-core score: 39 vs 31
- Stronger multi-core score: 36 vs 29
- 100% higher Max memory: 128 GB vs 64 GB
- 55% higher PassMark: 14,300 vs 9,200
- 52% higher Cinebench R23 (multi): 9,700 vs 6,400
General
| Spec | Intel Core i5-8400 | Intel Core i7-9700K |
|---|---|---|
| Announced | 2017 | 2018 |
| Socket | LGA1151-v2 | LGA1151-v2 |
| Process | 14 nm | 14 nm |
| Base TDP | 65 W+32% | 95 W |
| Max turbo power | — | 119 W |
| Unlocked multiplier | No | Yes |
| Cooler included | Yes | No |
Cores & Clocks
| Spec | Intel Core i5-8400 | Intel Core i7-9700K |
|---|---|---|
| Cores | 6 | 8+33% |
| Performance cores | 6 | 8+33% |
| Efficiency cores | 0 | 0 |
| Threads | 6 | 8+33% |
| Base clock | 2.8 GHz | 3.6 GHz+29% |
| Boost clock | 4 GHz | 4.9 GHz+23% |
| L2 cache | 2 MB | 2 MB+33% |
| L3 cache | 9 MB | 12 MB+33% |
Integrated GPU
| Spec | Intel Core i5-8400 | Intel Core i7-9700K |
|---|---|---|
| iGPU | Intel UHD Graphics 630 | Intel UHD Graphics 630 |
| iGPU clock | 1,050 MHz | 1,200 MHz |
Memory
| Spec | Intel Core i5-8400 | Intel Core i7-9700K |
|---|---|---|
| Memory support | DDR4-2666 | DDR4-2666 |
| Max memory | 64 GB | 128 GB+100% |
| Memory channels | 2 | 2 |
Platform
| Spec | Intel Core i5-8400 | Intel Core i7-9700K |
|---|---|---|
| PCIe version | 3 | 3 |
| CPU PCIe lanes | 16 | 16 |
Benchmarks
| Spec | Intel Core i5-8400 | Intel Core i7-9700K |
|---|---|---|
| Geekbench 6 (single) | 1,370Bottom 22% | 1,680+23%Bottom 39% |
| Geekbench 6 (multi) | 4,900Bottom 19% | 7,000+43%Bottom 37% |
| Cinebench R23 (single) | 1,150Bottom 22% | 1,250+9%Bottom 27% |
| Cinebench R23 (multi) | 6,400Bottom 19% | 9,700+52%Bottom 34% |
| PassMark | 9,200Bottom 14% | 14,300+55%Bottom 25% |
Related comparisons
Intel Core i5-8400vs Intel Core i7-5820KVSIntel Core i5-8400vs Intel Core i3-10100FVSIntel Core i5-8400vs Intel Core i5-9400FVSIntel Core i5-8400vs Intel Core i7-5930KVSIntel Core i7-9700Kvs Intel Core i5-11400VSIntel Core i7-9700Kvs Intel Core i5-11400FVSIntel Core i7-9700Kvs Intel Core i7-8700KVSIntel Core i7-9700Kvs Intel Core i5-10600KVS