Intel Core i7-11700K vs Intel Core i7-5820K
47.9Single-core20.7
46.8Multi-core30.2
47.4Gamingspec-based37.1
17 spec wins — Intel Core i7-11700K2 spec wins — Intel Core i7-5820K
InnoReviews verdict
Intel Core i7-11700K wins this desktop processor face-off, 47.3 to 29.1, pulling ahead mainly in single-core (+27) and multi-core (+17). 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 i7-11700K
- Stronger single-core score: 48 vs 21
- Stronger multi-core score: 47 vs 30
- 167% higher L2 cache: 4 MB vs 2 MB
- 134% higher Cinebench R23 (multi): 15,000 vs 6,400
- 100% higher Max memory: 128 GB vs 64 GB
Reasons to pick the Intel Core i7-5820K
- 100% higher Memory channels: 4 vs 2
- 40% higher CPU PCIe lanes: 28 vs 20
General
| Spec | Intel Core i7-11700K | 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 i7-11700K | Intel Core i7-5820K |
|---|---|---|
| Cores | 8+33% | 6 |
| Performance cores | 8+33% | 6 |
| Efficiency cores | 0 | 0 |
| Threads | 16+33% | 12 |
| Base clock | 3.6 GHz+9% | 3.3 GHz |
| Boost clock | 5 GHz+39% | 3.6 GHz |
| L2 cache | 4 MB+167% | 2 MB |
| L3 cache | 16 MB+7% | 15 MB |
Integrated GPU
| Spec | Intel Core i7-11700K | Intel Core i7-5820K |
|---|---|---|
| iGPU | Intel UHD Graphics 750 | — |
| iGPU clock | 1,300 MHz | — |
Memory
| Spec | Intel Core i7-11700K | 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 i7-11700K | Intel Core i7-5820K |
|---|---|---|
| PCIe version | 4+33% | 3 |
| CPU PCIe lanes | 20 | 28+40% |
Benchmarks
| Spec | Intel Core i7-11700K | Intel Core i7-5820K |
|---|---|---|
| Geekbench 6 (single) | 1,800+73%Bottom 45% | 1,040Bottom 6% |
| Geekbench 6 (multi) | 9,600+88%Bottom 49% | 5,100Bottom 24% |
| Cinebench R23 (single) | 1,550+74%Bottom 47% | 890Bottom 5% |
| Cinebench R23 (multi) | 15,000+134%Top 47% | 6,400Bottom 19% |
| PassMark | 24,700+94%Bottom 45% | 12,700Bottom 20% |
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