AMD Ryzen 9 3950X vs Intel Core i7-5820K
38.6Single-core20.7
64.6Multi-core30.2
79Gamingspec-based37.1
17 spec wins — AMD Ryzen 9 3950X2 spec wins — Intel Core i7-5820K
InnoReviews verdict
AMD Ryzen 9 3950X wins this desktop processor face-off, 60.4 to 29.1, pulling ahead mainly in multi-core (+34) and single-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 AMD Ryzen 9 3950X
- Stronger single-core score: 39 vs 21
- Stronger multi-core score: 65 vs 30
- 433% higher L2 cache: 8 MB vs 2 MB
- 327% higher L3 cache: 64 MB vs 15 MB
- 286% higher Cinebench R23 (multi): 24,700 vs 6,400
Reasons to pick the Intel Core i7-5820K
- 100% higher Memory channels: 4 vs 2
- 17% higher CPU PCIe lanes: 28 vs 24
- Lower launch price: $389 vs $749
General
| Spec | AMD Ryzen 9 3950X | Intel Core i7-5820K |
|---|---|---|
| Announced | 2019 | 2014 |
| Socket | AM4 | LGA2011-v3 |
| Process | 7 nm+68% | 22 nm |
| Base TDP | 105 W+25% | 140 W |
| Max turbo power | 142 W | — |
| Unlocked multiplier | Yes | Yes |
| Cooler included | No | No |
Cores & Clocks
| Spec | AMD Ryzen 9 3950X | Intel Core i7-5820K |
|---|---|---|
| Cores | 16+167% | 6 |
| Performance cores | 16+167% | 6 |
| Efficiency cores | 0 | 0 |
| Threads | 32+167% | 12 |
| Base clock | 3.5 GHz+6% | 3.3 GHz |
| Boost clock | 4.7 GHz+31% | 3.6 GHz |
| L2 cache | 8 MB+433% | 2 MB |
| L3 cache | 64 MB+327% | 15 MB |
Memory
| Spec | AMD Ryzen 9 3950X | Intel Core i7-5820K |
|---|---|---|
| Memory support | DDR4-3200 | DDR4-2133 |
| Max memory | 128 GB+100% | 64 GB |
| Memory channels | 2 | 4+100% |
Platform
| Spec | AMD Ryzen 9 3950X | Intel Core i7-5820K |
|---|---|---|
| PCIe version | 4+33% | 3 |
| CPU PCIe lanes | 24 | 28+17% |
Benchmarks
| Spec | AMD Ryzen 9 3950X | Intel Core i7-5820K |
|---|---|---|
| Geekbench 6 (single) | 1,570+51%Bottom 37% | 1,040Bottom 6% |
| Geekbench 6 (multi) | 13,300+161%Top 39% | 5,100Bottom 24% |
| Cinebench R23 (single) | 1,320+48%Bottom 35% | 890Bottom 5% |
| Cinebench R23 (multi) | 24,700+286%Top 22% | 6,400Bottom 19% |
| PassMark | 39,000+207%Top 27% | 12,700Bottom 20% |
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