Intel Core i5-11400F vs Intel Core i7-5820K
38.6Single-core20.7
36.5Multi-core30.2
36.7Gaming37.1
13 spec wins — Intel Core i5-11400F5 spec wins — Intel Core i7-5820K
InnoReviews verdict
Intel Core i5-11400F wins this desktop processor face-off, 37.2 to 29.1, pulling ahead mainly in Single-core (+18) and Multi-core (+6). 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 i5-11400F
- Stronger Single-core score: 39 vs 21
- Stronger Multi-core score: 37 vs 30
- 100% higher L2 cache: 3 MB vs 2 MB
- 100% higher Max memory: 128 GB vs 64 GB
- 59% higher Cinebench R23 (multi): 10,200 vs 6,400
- Lower launch price: $157 vs $389
Reasons to pick the Intel Core i7-5820K
- 100% higher Memory channels: 4 vs 2
- 40% higher CPU PCIe lanes: 28 vs 20
- 27% higher Base clock: 3.3 GHz vs 2.6 GHz
- 25% higher L3 cache: 15 MB vs 12 MB
- Has Unlocked multiplier — the other doesn't
General
| Spec | Intel Core i5-11400F | Intel Core i7-5820K |
|---|---|---|
| Announced | 2021 | 2014 |
| Socket | LGA1200 | LGA2011-v3 |
| Process | 14 nm+36% | 22 nm |
| Base TDP | 65 W+54% | 140 W |
| Max turbo power | 154 W | — |
| Unlocked multiplier | No | Yes |
| Cooler included | Yes | No |
Cores & Clocks
| Spec | Intel Core i5-11400F | Intel Core i7-5820K |
|---|---|---|
| Cores | 6 | 6 |
| Performance cores | 6 | 6 |
| Efficiency cores | 0 | 0 |
| Threads | 12 | 12 |
| Base clock | 2.6 GHz | 3.3 GHz+27% |
| Boost clock | 4.4 GHz+22% | 3.6 GHz |
| L2 cache | 3 MB+100% | 2 MB |
| L3 cache | 12 MB | 15 MB+25% |
Memory
| Spec | Intel Core i5-11400F | 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 i5-11400F | Intel Core i7-5820K |
|---|---|---|
| PCIe version | 4+33% | 3 |
| CPU PCIe lanes | 20 | 28+40% |
Benchmarks
| Spec | Intel Core i5-11400F | Intel Core i7-5820K |
|---|---|---|
| Geekbench 6 (single) | 1,560+50%Top 58% | 1,040Top 95% |
| Geekbench 6 (multi) | 6,300+24%Top 66% | 5,100Top 73% |
| Cinebench R23 (single) | 1,330+49%Top 54% | 890Top 96% |
| Cinebench R23 (multi) | 10,200+59%Top 55% | 6,400Top 77% |
| PassMark | 17,000+34%Top 58% | 12,700Top 72% |
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