| Spec | Ryzen 9 3900X | Core i5-8400 |
|---|---|---|
| Performance | ||
| Total Cores | 12+100% | 6 |
| Threads | 24+300% | 6 |
| Boost Clock | 4.6 GHz+15% | 4 GHz |
| Base Clock | 3.8 GHz+36% | 2.8 GHz |
| Cache | ||
| L3 Cache | 64 MB+611% | 9 MB |
| L2 Cache | 6 MB+300% | 1.5 MB |
| Platform | ||
| Socket | AM4 | LGA1151 |
| Architecture | Matisse | Coffee Lake |
| Process Node | 7 nm | 14 nm |
| Memory Support | DDR4 | DDR4 |
| Max Memory | 128 GB+100% | 64 GB |
| PCIe Lanes | 24+50% | 16 |
| PCIe Version | 4+33% | 3 |
| Power | ||
| TDP | 105W | 65W+62% |
| Max Turbo Power | 142W | 65W+118% |
| Features | ||
| Unlocked | Yes | No |
| Cooler Included | Yes | Yes |
| Integrated GPU | No | Yes |
| iGPU Model | N/A | Intel UHD Graphics 630 |
| Price | ||
| MSRP | $499 | $182+174% |
| Release Date | 2019-07-01 | 2017-10-05 |
