Intel Core i7-6700K vs Intel Core i7-8700K
30.7Single-core37.3
27Multi-core34.7
25.6Gamingspec-based38.5
2 spec wins — Intel Core i7-6700K12 spec wins — Intel Core i7-8700K
InnoReviews verdict
Intel Core i7-8700K wins this desktop processor face-off, 36.4 to 27.8, pulling ahead mainly in multi-core (+8) and single-core (+7). 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 i7-6700K
No decisive spec advantages — this side competes on price and preference.
Reasons to pick the Intel Core i7-8700K
- Stronger single-core score: 37 vs 31
- Stronger multi-core score: 35 vs 27
- 84% higher Cinebench R23 (multi): 9,200 vs 5,000
- 56% higher PassMark: 13,900 vs 8,900
- 50% higher cores: 6 vs 4
General
| Spec | Intel Core i7-6700K | Intel Core i7-8700K |
|---|---|---|
| Announced | 2015 | 2017 |
| Socket | LGA1151 | LGA1151-v2 |
| Process | 14 nm | 14 nm |
| Base TDP | 91 W+4% | 95 W |
| Unlocked multiplier | Yes | Yes |
| Cooler included | No | No |
Cores & Clocks
| Spec | Intel Core i7-6700K | Intel Core i7-8700K |
|---|---|---|
| Cores | 4 | 6+50% |
| Performance cores | 4 | 6+50% |
| Efficiency cores | 0 | 0 |
| Threads | 8 | 12+50% |
| Base clock | 4 GHz+8% | 3.7 GHz |
| Boost clock | 4.2 GHz | 4.7 GHz+12% |
| L2 cache | 1 MB | 2 MB+50% |
| L3 cache | 8 MB | 12 MB+50% |
Integrated GPU
| Spec | Intel Core i7-6700K | Intel Core i7-8700K |
|---|---|---|
| iGPU | Intel HD Graphics 530 | Intel UHD Graphics 630 |
| iGPU clock | 1,150 MHz | 1,200 MHz |
Memory
| Spec | Intel Core i7-6700K | Intel Core i7-8700K |
|---|---|---|
| Memory support | DDR4-2133 / DDR3L-1600 | DDR4-2666 |
| Max memory | 64 GB | 64 GB |
| Memory channels | 2 | 2 |
Platform
| Spec | Intel Core i7-6700K | Intel Core i7-8700K |
|---|---|---|
| PCIe version | 3 | 3 |
| CPU PCIe lanes | 16 | 16 |
Benchmarks
| Spec | Intel Core i7-6700K | Intel Core i7-8700K |
|---|---|---|
| Geekbench 6 (single) | 1,420Bottom 25% | 1,560+10%Bottom 33% |
| Geekbench 6 (multi) | 4,650Bottom 18% | 6,800+46%Bottom 35% |
| Cinebench R23 (single) | 1,090Bottom 15% | 1,270+17%Bottom 29% |
| Cinebench R23 (multi) | 5,000Bottom 14% | 9,200+84%Bottom 32% |
| PassMark | 8,900Bottom 13% | 13,900+56%Bottom 23% |
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