| Attribute | Value |
| General Information |
| Brand | Intel |
| Series | Intel Core i9 |
| Model | Intel Core i9-11900KF |
| CPU Cores and Base Frequency |
| CPU Cores | 8 |
| Frequency | 3.5 GHz |
| CPU Threads | 16 |
| Core architecture | normal |
| Hyperthreading | + |
| Overclocking | + |
| A core | Add |
| B core | Add |
| C core | Add |
| Turbo (1 Core) | 5.3 GHz |
| Turbo (2 Cores) | Add |
| Turbo (3 Cores) | Add |
| Turbo (4 Cores) | Add |
| Turbo (5 Cores) | Add |
| Turbo (6 Cores) | Add |
| Turbo (8 Cores) | 4.8 GHz |
| Turbo (10 Cores) | Add |
| Turbo (12 Cores) | Add |
| Turbo (14 Cores) | Add |
| Turbo (15 Cores) | Add |
| Turbo (16 Cores) | Add |
| Turbo (18 Cores) | Add |
| Turbo (20 Cores) | Add |
| Turbo (22 Cores) | Add |
| Turbo (24 Cores) | Add |
| Turbo (26 Cores) | Add |
| Turbo (28 Cores) | Add |
| Turbo (32 Cores) | Add |
| Turbo (48 Cores) | Add |
| Turbo (64 Cores) | Add |
| Turbo (56 Cores) | Add |
| Encryption |
| AES-NI | + |
| Hardware codec support |
| JPEG | No |
| h264 | No |
| h265 / HEVC (8 bit) | No |
| h265 / HEVC (10 bit) | No |
| VP8 | No |
| AV1 | No |
| VC-1 | No |
| VP9 | No |
| AVC | No |
| Internal Graphics |
| GPU name | Add |
| GPU frequency | Add |
| GPU (Turbo) | Add |
| Generation | Add |
| DirectX Version | Add |
| Execution units | Add |
| Shader | Add |
| Max. GPU Memory | Add |
| Max. displays | Add |
| GPU Release date | Add |
| Memory And PCIe |
| Memory type | DDR4-3200 |
| Max. Memory | 128 GB |
| PCIe lanes | 20 |
| PCIe version | 4.0 |
| ECC | - |
| Memory channels | 2 |
| Technical details |
| Release date | 2021 year |
| Technology | 14 Nm |
| Socket | LGA 1200 |
| Virtualization | |
| L3-Cache | 16 MB |
| L2-Cache | 4 MB |
| Architecture | Rocket Lake |
| Instruction set (ISA) | x86-64 (64 bit) |
| Thermal Management |
| Temp junction max | 100 °C |
| TDP (PL2) | 251 W |
| TDP up | Add |
| TDP down | 95 W |
| TDP (PL1) | 125 W |
| Benchmarks |
| iGPU - FP32 Performance (Single-precision GFLOPS) | Add |
| Estimated results for PassMark CPU Mark | 28,465 |
| Geekbench 5, 64bit (Single-Core) | 1,910 |
| Geekbench 5, 64bit (Multi-Core) | 11,350 |
| Cinebench R15 (Single-Core) | 262 |
| Cinebench R15 (Multi-Core) | 2,575 |
| Cinebench R20 (Single-Core) | 645 |
| Cinebench R20 (Multi-Core) | 6,214 |
| Cinebench R11.5, 64bit (Single-Core) | Add |
| Cinebench R11.5, 64bit (Multi-Core) | Add |
| Geekbench 3, 64bit (Single-Core) | Add |
| Geekbench 3, 64bit (Multi-Core) | Add |
| Cinebench R11.5, 64bit (iGPU, OpenGL) | Add |
| Blender 2.81 (bmw27) | Add |
| Cinebench R23 (Single-Core) | 1,671 |
| Cinebench R23 (Multi-Core) | 16,211 |
| AnTuTu 8 benchmark | Add |