Intel Core i7-5820K vs Intel Core i9-10900K
20.7Single-core41.9
30.2Multi-core48.2
37.1Gaming54.6
2 spec wins — Intel Core i7-5820K16 spec wins — Intel Core i9-10900K
InnoReviews verdict
Intel Core i9-10900K wins this desktop processor face-off, 47.9 to 29.1, pulling ahead mainly in Single-core (+21) and Multi-core (+18). 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
- Lower launch price: $389 vs $488
Reasons to pick the Intel Core i9-10900K
- Stronger Single-core score: 42 vs 21
- Stronger Multi-core score: 48 vs 30
- Stronger gaming score: 55 vs 37
- 155% higher Cinebench R23 (multi): 16,300 vs 6,400
- 104% higher Geekbench 6 (multi): 10,400 vs 5,100
General
| Spec | Intel Core i7-5820K | Intel Core i9-10900K |
|---|---|---|
| Announced | 2014 | 2020 |
| Socket | LGA2011-v3 | LGA1200 |
| Process | 22 nm | 14 nm+36% |
| Base TDP | 140 W | 125 W+11% |
| Max turbo power | — | 250 W |
| Unlocked multiplier | Yes | Yes |
| Cooler included | No | No |
Cores & Clocks
| Spec | Intel Core i7-5820K | Intel Core i9-10900K |
|---|---|---|
| Cores | 6 | 10+67% |
| Performance cores | 6 | 10+67% |
| Efficiency cores | 0 | 0 |
| Threads | 12 | 20+67% |
| Base clock | 3.3 GHz | 3.7 GHz+12% |
| Boost clock | 3.6 GHz | 5.3 GHz+47% |
| L2 cache | 2 MB | 3 MB+67% |
| L3 cache | 15 MB | 20 MB+33% |
Integrated GPU
| Spec | Intel Core i7-5820K | Intel Core i9-10900K |
|---|---|---|
| iGPU | — | Intel UHD Graphics 630 |
| iGPU clock | — | 1,200 MHz |
Memory
| Spec | Intel Core i7-5820K | Intel Core i9-10900K |
|---|---|---|
| Memory support | DDR4-2133 | DDR4-2933 |
| Max memory | 64 GB | 128 GB+100% |
| Memory channels | 4+100% | 2 |
Platform
| Spec | Intel Core i7-5820K | Intel Core i9-10900K |
|---|---|---|
| PCIe version | 3 | 3 |
| CPU PCIe lanes | 28+75% | 16 |
Benchmarks
| Spec | Intel Core i7-5820K | Intel Core i9-10900K |
|---|---|---|
| Geekbench 6 (single) | 1,040Top 95% | 1,730+66%Top 50% |
| Geekbench 6 (multi) | 5,100Top 73% | 10,400+104%Top 38% |
| Cinebench R23 (single) | 890Top 96% | 1,340+51%Top 52% |
| Cinebench R23 (multi) | 6,400Top 77% | 16,300+155%Top 30% |
| PassMark | 12,700Top 72% | 23,700+87%Top 40% |
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