| Spec | Core i9-11900K | Core i9-9900K |
|---|---|---|
| Performance | ||
| Total Cores | 8 | 8 |
| Threads | 16 | 16 |
| Boost Clock | 5.3 GHz+6% | 5 GHz |
| Base Clock | 3.5 GHz | 3.6 GHz+3% |
| Cache | ||
| L3 Cache | 16 MB | 16 MB |
| L2 Cache | 4 MB+100% | 2 MB |
| Platform | ||
| Socket | LGA1200 | LGA1151 |
| Architecture | Rocket Lake | Coffee Lake Refresh |
| Process Node | 14 nm | 14 nm |
| Memory Support | DDR4 | DDR4 |
| Max Memory | 128 GB+100% | 64 GB |
| PCIe Lanes | 20+25% | 16 |
| PCIe Version | 4+33% | 3 |
| Power | ||
| TDP | 125W | 95W+32% |
| Max Turbo Power | 251W | 95W+164% |
| Features | ||
| Unlocked | Yes | Yes |
| Cooler Included | No | No |
| Integrated GPU | Yes | Yes |
| iGPU Model | Intel UHD Graphics 750 | Intel UHD Graphics 630 |
| Price | ||
| MSRP | $539 | $488+10% |
| Release Date | 2021-03-01 | 2018-10-19 |
