Intel Core i5-8600K vs Intel Core i7-5820K
34.5Single-core20.7
30Multi-core30.2
29.1Gaming37.1
9 spec wins — Intel Core i5-8600K5 spec wins — Intel Core i7-5820K
InnoReviews verdict
Intel Core i5-8600K wins this desktop processor face-off, 31.1 to 29.1, pulling ahead mainly in Single-core (+14). 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 i5-8600K
- Stronger Single-core score: 35 vs 21
- 42% higher Geekbench 6 (single): 1,480 vs 1,040
- 36% lower process: 14 nm vs 22 nm
- 36% higher Cinebench R23 (single): 1,210 vs 890
- 32% lower Base TDP: 95 W vs 140 W
- Lower launch price: $257 vs $389
Reasons to pick the Intel Core i7-5820K
- Stronger gaming score: 37 vs 29
- 100% higher threads: 12 vs 6
- 100% higher Memory channels: 4 vs 2
- 75% higher CPU PCIe lanes: 28 vs 16
- 67% higher L3 cache: 15 MB vs 9 MB
General
| Spec | Intel Core i5-8600K | Intel Core i7-5820K |
|---|---|---|
| Announced | 2017 | 2014 |
| Socket | LGA1151-v2 | LGA2011-v3 |
| Process | 14 nm+36% | 22 nm |
| Base TDP | 95 W+32% | 140 W |
| Unlocked multiplier | Yes | Yes |
| Cooler included | No | No |
Cores & Clocks
| Spec | Intel Core i5-8600K | Intel Core i7-5820K |
|---|---|---|
| Cores | 6 | 6 |
| Performance cores | 6 | 6 |
| Efficiency cores | 0 | 0 |
| Threads | 6 | 12+100% |
| Base clock | 3.6 GHz+9% | 3.3 GHz |
| Boost clock | 4.3 GHz+19% | 3.6 GHz |
| L2 cache | 2 MB | 2 MB |
| L3 cache | 9 MB | 15 MB+67% |
Integrated GPU
| Spec | Intel Core i5-8600K | Intel Core i7-5820K |
|---|---|---|
| iGPU | Intel UHD Graphics 630 | — |
| iGPU clock | 1,150 MHz | — |
Memory
| Spec | Intel Core i5-8600K | Intel Core i7-5820K |
|---|---|---|
| Memory support | DDR4-2666 | DDR4-2133 |
| Max memory | 64 GB | 64 GB |
| Memory channels | 2 | 4+100% |
Platform
| Spec | Intel Core i5-8600K | Intel Core i7-5820K |
|---|---|---|
| PCIe version | 3 | 3 |
| CPU PCIe lanes | 16 | 28+75% |
Benchmarks
| Spec | Intel Core i5-8600K | Intel Core i7-5820K |
|---|---|---|
| Geekbench 6 (single) | 1,480+42%Top 69% | 1,040Top 95% |
| Geekbench 6 (multi) | 5,400+6%Top 71% | 5,100Top 73% |
| Cinebench R23 (single) | 1,210+36%Top 71% | 890Top 96% |
| Cinebench R23 (multi) | 6,800+6%Top 73% | 6,400Top 77% |
| PassMark | 10,600Top 77% | 12,700+20%Top 72% |
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