Intel Core i7-12700K vs Intel Core i7-5820K
69.4Single-core20.7
61.5Multi-core30.2
58.1Gamingspec-based37.1
18 spec wins — Intel Core i7-12700K2 spec wins — Intel Core i7-5820K
InnoReviews verdict
Intel Core i7-12700K wins this desktop processor face-off, 63 to 29.1, pulling ahead mainly in single-core (+49) and multi-core (+31). 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 i7-12700K
- Stronger single-core score: 69 vs 21
- Stronger multi-core score: 62 vs 30
- 700% higher L2 cache: 12 MB vs 2 MB
- 250% higher Cinebench R23 (multi): 22,400 vs 6,400
- 180% higher Geekbench 6 (multi): 14,300 vs 5,100
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 i7-12700K | Intel Core i7-5820K |
|---|---|---|
| Announced | 2021 | 2014 |
| Socket | LGA1700 | LGA2011-v3 |
| Process | 10 nm+55% | 22 nm |
| Base TDP | 125 W+11% | 140 W |
| Max turbo power | 190 W | — |
| Unlocked multiplier | Yes | Yes |
| Cooler included | No | No |
Cores & Clocks
| Spec | Intel Core i7-12700K | Intel Core i7-5820K |
|---|---|---|
| Cores | 12+100% | 6 |
| Performance cores | 8+33% | 6 |
| Efficiency cores | 4 | 0 |
| Threads | 20+67% | 12 |
| Base clock | 3.6 GHz+9% | 3.3 GHz |
| Boost clock | 5 GHz+39% | 3.6 GHz |
| L2 cache | 12 MB+700% | 2 MB |
| L3 cache | 25 MB+67% | 15 MB |
Integrated GPU
| Spec | Intel Core i7-12700K | Intel Core i7-5820K |
|---|---|---|
| iGPU | Intel UHD Graphics 770 | — |
| iGPU clock | 1,500 MHz | — |
Memory
| Spec | Intel Core i7-12700K | Intel Core i7-5820K |
|---|---|---|
| Memory support | DDR5-4800 / DDR4-3200 | DDR4-2133 |
| Max memory | 128 GB+100% | 64 GB |
| Memory channels | 2 | 4+100% |
Platform
| Spec | Intel Core i7-12700K | Intel Core i7-5820K |
|---|---|---|
| PCIe version | 5+67% | 3 |
| CPU PCIe lanes | 20 | 28+40% |
Benchmarks
| Spec | Intel Core i7-12700K | Intel Core i7-5820K |
|---|---|---|
| Geekbench 6 (single) | 2,500+140%Top 40% | 1,040Bottom 6% |
| Geekbench 6 (multi) | 14,300+180%Top 36% | 5,100Bottom 24% |
| Cinebench R23 (single) | 1,950+119%Top 30% | 890Bottom 5% |
| Cinebench R23 (multi) | 22,400+250%Top 26% | 6,400Bottom 19% |
| PassMark | 34,500+172%Top 34% | 12,700Bottom 20% |
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