Intel Core i7-5820K vs Intel Core i7-8700
20.7Single-core35.3
30.2Multi-core33.3
37.1Gamingspec-based37.9
5 spec wins — Intel Core i7-5820K10 spec wins — Intel Core i7-8700
InnoReviews verdict
Intel Core i7-8700 wins this desktop processor face-off, 35 to 29.1, pulling ahead mainly in single-core (+15) and multi-core (+3). Intel Core i7-5820K 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 i7-5820K
- 100% higher Memory channels: 4 vs 2
- 75% higher CPU PCIe lanes: 28 vs 16
- 25% higher L3 cache: 15 MB vs 12 MB
- Has Unlocked multiplier — the other doesn't
Reasons to pick the Intel Core i7-8700
- Stronger single-core score: 35 vs 21
- Stronger multi-core score: 33 vs 30
- 54% lower Base TDP: 65 W vs 140 W
- 44% higher Geekbench 6 (single): 1,500 vs 1,040
- 38% higher Cinebench R23 (single): 1,230 vs 890
- Lower launch price: $303 vs $389
General
| Spec | Intel Core i7-5820K | Intel Core i7-8700 |
|---|---|---|
| Announced | 2014 | 2017 |
| Socket | LGA2011-v3 | LGA1151-v2 |
| Process | 22 nm | 14 nm+36% |
| Base TDP | 140 W | 65 W+54% |
| Unlocked multiplier | Yes | No |
| Cooler included | No | Yes |
Cores & Clocks
| Spec | Intel Core i7-5820K | Intel Core i7-8700 |
|---|---|---|
| Cores | 6 | 6 |
| Performance cores | 6 | 6 |
| Efficiency cores | 0 | 0 |
| Threads | 12 | 12 |
| Base clock | 3.3 GHz+3% | 3.2 GHz |
| Boost clock | 3.6 GHz | 4.6 GHz+28% |
| L2 cache | 2 MB | 2 MB |
| L3 cache | 15 MB+25% | 12 MB |
Integrated GPU
| Spec | Intel Core i7-5820K | Intel Core i7-8700 |
|---|---|---|
| iGPU | — | Intel UHD Graphics 630 |
| iGPU clock | — | 1,200 MHz |
Memory
| Spec | Intel Core i7-5820K | Intel Core i7-8700 |
|---|---|---|
| Memory support | DDR4-2133 | DDR4-2666 |
| Max memory | 64 GB | 64 GB |
| Memory channels | 4+100% | 2 |
Platform
| Spec | Intel Core i7-5820K | Intel Core i7-8700 |
|---|---|---|
| PCIe version | 3 | 3 |
| CPU PCIe lanes | 28+75% | 16 |
Benchmarks
| Spec | Intel Core i7-5820K | Intel Core i7-8700 |
|---|---|---|
| Geekbench 6 (single) | 1,040Bottom 6% | 1,500+44%Bottom 29% |
| Geekbench 6 (multi) | 5,100Bottom 24% | 6,400+25%Bottom 30% |
| Cinebench R23 (single) | 890Bottom 5% | 1,230+38%Bottom 25% |
| Cinebench R23 (multi) | 6,400Bottom 19% | 8,400+31%Bottom 28% |
| PassMark | 12,700Bottom 20% | 13,000+2%Bottom 21% |
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