Intel Core i7-3770 vs Intel Core i7-5820K
22.5Single-core20.7
24.5Multi-core30.2
23.8Gaming37.1
6 spec wins — Intel Core i7-377013 spec wins — Intel Core i7-5820K
InnoReviews verdict
Intel Core i7-5820K wins this desktop processor face-off, 29.1 to 23.7, pulling ahead mainly in gaming (+13) and Multi-core (+6). Intel Core i7-3770 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 i7-3770
- 45% lower Base TDP: 77 W vs 140 W
- 10% higher Cinebench R23 (single): 980 vs 890
- Has Cooler included — the other doesn't
- Lower launch price: $294 vs $389
Reasons to pick the Intel Core i7-5820K
- Stronger Multi-core score: 30 vs 25
- Stronger gaming score: 37 vs 24
- 100% higher Max memory: 64 GB vs 32 GB
- 100% higher Memory channels: 4 vs 2
- 88% higher L3 cache: 15 MB vs 8 MB
General
| Spec | Intel Core i7-3770 | Intel Core i7-5820K |
|---|---|---|
| Announced | 2012 | 2014 |
| Socket | LGA1155 | LGA2011-v3 |
| Process | 22 nm | 22 nm |
| Base TDP | 77 W+45% | 140 W |
| Unlocked multiplier | No | Yes |
| Cooler included | Yes | No |
Cores & Clocks
| Spec | Intel Core i7-3770 | Intel Core i7-5820K |
|---|---|---|
| Cores | 4 | 6+50% |
| Performance cores | 4 | 6+50% |
| Efficiency cores | 0 | 0 |
| Threads | 8 | 12+50% |
| Base clock | 3.4 GHz+3% | 3.3 GHz |
| Boost clock | 3.9 GHz+8% | 3.6 GHz |
| L2 cache | 1 MB | 2 MB+50% |
| L3 cache | 8 MB | 15 MB+88% |
Integrated GPU
| Spec | Intel Core i7-3770 | Intel Core i7-5820K |
|---|---|---|
| iGPU | Intel HD Graphics 4000 | — |
| iGPU clock | 1,150 MHz | — |
Memory
| Spec | Intel Core i7-3770 | Intel Core i7-5820K |
|---|---|---|
| Memory support | DDR3-1600 | DDR4-2133 |
| Max memory | 32 GB | 64 GB+100% |
| Memory channels | 2 | 4+100% |
Platform
| Spec | Intel Core i7-3770 | Intel Core i7-5820K |
|---|---|---|
| PCIe version | 3 | 3 |
| CPU PCIe lanes | 16 | 28+75% |
Benchmarks
| Spec | Intel Core i7-3770 | Intel Core i7-5820K |
|---|---|---|
| Geekbench 6 (single) | 1,100+6%Top 91% | 1,040Top 95% |
| Geekbench 6 (multi) | 3,550Top 88% | 5,100+44%Top 73% |
| Cinebench R23 (single) | 980+10%Top 88% | 890Top 96% |
| Cinebench R23 (multi) | 4,100Top 89% | 6,400+56%Top 77% |
| PassMark | 7,000Top 88% | 12,700+81%Top 72% |
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