Intel Core i5-11600K vs Intel Core i7-5820K
48Single-core20.7
39.1Multi-core30.2
39.8Gaming37.1
13 spec wins — Intel Core i5-11600K3 spec wins — Intel Core i7-5820K
InnoReviews verdict
Intel Core i5-11600K wins this desktop processor face-off, 42 to 29.1, pulling ahead mainly in Single-core (+27) and Multi-core (+9). 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 i5-11600K
- Stronger Single-core score: 48 vs 21
- Stronger Multi-core score: 39 vs 30
- 100% higher L2 cache: 3 MB vs 2 MB
- 100% higher Max memory: 128 GB vs 64 GB
- 80% higher Geekbench 6 (single): 1,870 vs 1,040
- Lower launch price: $262 vs $389
Reasons to pick the Intel Core i7-5820K
- 100% higher Memory channels: 4 vs 2
- 40% higher CPU PCIe lanes: 28 vs 20
- 25% higher L3 cache: 15 MB vs 12 MB
General
| Spec | Intel Core i5-11600K | Intel Core i7-5820K |
|---|---|---|
| Announced | 2021 | 2014 |
| Socket | LGA1200 | LGA2011-v3 |
| Process | 14 nm+36% | 22 nm |
| Base TDP | 125 W+11% | 140 W |
| Max turbo power | 251 W | — |
| Unlocked multiplier | Yes | Yes |
| Cooler included | No | No |
Cores & Clocks
| Spec | Intel Core i5-11600K | Intel Core i7-5820K |
|---|---|---|
| Cores | 6 | 6 |
| Performance cores | 6 | 6 |
| Efficiency cores | 0 | 0 |
| Threads | 12 | 12 |
| Base clock | 3.9 GHz+18% | 3.3 GHz |
| Boost clock | 4.9 GHz+36% | 3.6 GHz |
| L2 cache | 3 MB+100% | 2 MB |
| L3 cache | 12 MB | 15 MB+25% |
Integrated GPU
| Spec | Intel Core i5-11600K | Intel Core i7-5820K |
|---|---|---|
| iGPU | Intel UHD Graphics 750 | — |
| iGPU clock | 1,300 MHz | — |
Memory
| Spec | Intel Core i5-11600K | Intel Core i7-5820K |
|---|---|---|
| Memory support | DDR4-3200 | DDR4-2133 |
| Max memory | 128 GB+100% | 64 GB |
| Memory channels | 2 | 4+100% |
Platform
| Spec | Intel Core i5-11600K | Intel Core i7-5820K |
|---|---|---|
| PCIe version | 4+33% | 3 |
| CPU PCIe lanes | 20 | 28+40% |
Benchmarks
| Spec | Intel Core i5-11600K | Intel Core i7-5820K |
|---|---|---|
| Geekbench 6 (single) | 1,870+80%Top 44% | 1,040Top 95% |
| Geekbench 6 (multi) | 7,100+39%Top 56% | 5,100Top 73% |
| Cinebench R23 (single) | 1,500+69%Top 44% | 890Top 96% |
| Cinebench R23 (multi) | 11,100+73%Top 50% | 6,400Top 77% |
| PassMark | 19,800+56%Top 48% | 12,700Top 72% |
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