Intel Core i7-4790K vs Intel Core i7-5820K
31.6Single-core20
25.9Multi-core29.1
26.9Gamingspec-based37.1
5 spec wins — Intel Core i7-4790K9 spec wins — Intel Core i7-5820K
InnoReviews verdict
This one is close to a dead heat: Intel Core i7-4790K scores 27.9 against 28.4 for Intel Core i7-5820K. Pick by the categories that matter to you — Intel Core i7-5820K edges ahead in multi-core, or by price.
Which would you pick?
Key differences
Reasons to pick the Intel Core i7-4790K
- Stronger single-core score: 32 vs 20
- 37% lower Base TDP: 88 W vs 140 W
- 24% higher PassMark (single thread): 2,464 vs 1,992
- 22% higher Boost clock: 4.4 GHz vs 3.6 GHz
- 21% higher Base clock: 4 GHz vs 3.3 GHz
- Lower launch price: $339 vs $389
Reasons to pick the Intel Core i7-5820K
- Stronger multi-core score: 29 vs 26
- 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
- 75% higher CPU PCIe lanes: 28 vs 16
General
| Spec | Intel Core i7-4790K | Intel Core i7-5820K |
|---|---|---|
| Announced | 2014 | 2014 |
| Socket | LGA1150 | LGA2011-v3 |
| Process | 22 nm | 22 nm |
| Base TDP | 88 W+37% | 140 W |
| Unlocked multiplier | Yes | Yes |
| Cooler included | Yes | No |
Cores & Clocks
| Spec | Intel Core i7-4790K | Intel Core i7-5820K |
|---|---|---|
| Cores | 4 | 6+50% |
| Performance cores | 4 | 6+50% |
| Efficiency cores | 0 | 0 |
| Threads | 8 | 12+50% |
| Base clock | 4 GHz+21% | 3.3 GHz |
| Boost clock | 4.4 GHz+22% | 3.6 GHz |
| L2 cache | 1 MB | 1.5 MB+50% |
| L3 cache | 8 MB | 15 MB+88% |
Integrated GPU
| Spec | Intel Core i7-4790K | Intel Core i7-5820K |
|---|---|---|
| iGPU | Intel HD Graphics 4600 | — |
| iGPU clock | 1,250 MHz | — |
Memory
| Spec | Intel Core i7-4790K | 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 i7-4790K | Intel Core i7-5820K |
|---|---|---|
| PCIe version | 3 | 3 |
| CPU PCIe lanes | 16 | 28+75% |
Benchmarks
| Spec | Intel Core i7-4790K | Intel Core i7-5820K |
|---|---|---|
| Cinebench R23 (single) | — | 890Bottom 5% |
| Cinebench R23 (multi) | — | 6,400Bottom 14% |
| PassMark | 8,062Bottom 11% | 9,831+22%Bottom 16% |
| PassMark (single thread) | 2,464+24%Bottom 19% | 1,992Bottom 3% |
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