Intel Core i5-10400 vs Intel Core i7-6700K
30.4Single-core30.7
32.2Multi-core27
36Gaming25.6
14 spec wins — Intel Core i5-104004 spec wins — Intel Core i7-6700K
InnoReviews verdict
Intel Core i5-10400 wins this desktop processor face-off, 32.6 to 27.8, pulling ahead mainly in gaming (+10) and Multi-core (+5). Intel Core i7-6700K 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 i5-10400
- Stronger Multi-core score: 32 vs 27
- Stronger gaming score: 36 vs 26
- 100% higher Max memory: 128 GB vs 64 GB
- 60% higher Cinebench R23 (multi): 8,000 vs 5,000
- 50% higher cores: 6 vs 4
- Lower launch price: $182 vs $339
Reasons to pick the Intel Core i7-6700K
- 38% higher Base clock: 4 GHz vs 2.9 GHz
- Has Unlocked multiplier — the other doesn't
General
| Spec | Intel Core i5-10400 | Intel Core i7-6700K |
|---|---|---|
| Announced | 2020 | 2015 |
| Socket | LGA1200 | LGA1151 |
| Process | 14 nm | 14 nm |
| Base TDP | 65 W+29% | 91 W |
| Max turbo power | 134 W | — |
| Unlocked multiplier | No | Yes |
| Cooler included | Yes | No |
Cores & Clocks
| Spec | Intel Core i5-10400 | Intel Core i7-6700K |
|---|---|---|
| Cores | 6+50% | 4 |
| Performance cores | 6+50% | 4 |
| Efficiency cores | 0 | 0 |
| Threads | 12+50% | 8 |
| Base clock | 2.9 GHz | 4 GHz+38% |
| Boost clock | 4.3 GHz+2% | 4.2 GHz |
| L2 cache | 2 MB+50% | 1 MB |
| L3 cache | 12 MB+50% | 8 MB |
Integrated GPU
| Spec | Intel Core i5-10400 | Intel Core i7-6700K |
|---|---|---|
| iGPU | Intel UHD Graphics 630 | Intel HD Graphics 530 |
| iGPU clock | 1,100 MHz | 1,150 MHz+5% |
Memory
| Spec | Intel Core i5-10400 | 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 i5-10400 | Intel Core i7-6700K |
|---|---|---|
| PCIe version | 3 | 3 |
| CPU PCIe lanes | 16 | 16 |
Benchmarks
| Spec | Intel Core i5-10400 | Intel Core i7-6700K |
|---|---|---|
| Geekbench 6 (single) | 1,390Top 73% | 1,420+2%Top 71% |
| Geekbench 6 (multi) | 5,800+25%Top 70% | 4,650Top 79% |
| Cinebench R23 (single) | 1,100+1%Top 80% | 1,090Top 82% |
| Cinebench R23 (multi) | 8,000+60%Top 71% | 5,000Top 84% |
| PassMark | 12,600+42%Top 73% | 8,900Top 82% |
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