Intel Core i9 12900KF
- Cores: 16
- L3 cache: 30MB (shared)
- TDP: 125 W (max. boost up to 241 W)
- Transistor size: 10 nm
Core i9 12900KF - desktop processor produced by Intel for socket LGA-1700 that has 16 cores and 24 threads. The base clock frequency of the CPU is 3200 MHz, but due to Turbo Boost technology, it can perform up to 5100 MHz. The size of the L3 cache is 30 MB. Please note that this chip doesn’t have integrated graphics.
Review
Compare Intel Core i9 12900KF with other CPUs
Test in Benchmarks
Performance test of Intel Core i9 12900KF in benchmarksCinebench
Cinebench Scores - 77th place
GeekBench v6
| File compression | 1150 MB/sec |
| Clang compilation | 141 Klines/sec |
| HTML 5 Browser | 363.2 pages/sec |
| PDF Renderer | 475.6 Mpixels/sec |
| Text processing | 274.8 pages/sec |
| Background blur | 66.8 images/sec |
| Photo processing | 138.5 images/sec |
| Ray tracing | 33.9 Mpixels/sec |
PassMark
| Integer math | 138.3 GOps/sec |
| Floating point math | 104.8 GOps/sec |
| Find prime numbers | 138M Primes/sec |
| Random string sorting | 56.7M Strings/sec |
| Data encryption | 29.2 GBytes/sec |
| Data compression | 532.8 MBytes/sec |
| Physics | 2054 Frames/sec |
| Extended instructions | 33.4B Matrices/sec |
Blender
Performance Per Watt
| Cinebench 2024 / Watt | 11.7 PPW |
| Geekbench 6 Multi / Watt | 129.1 PPW |
| Passmark CPU Mark / Watt | 324 PPW |
| Blender / Watt | 2.92 PPW |
These are rough calculations, as most CPUs surpass PL1 TDP wattage even in multicore workloads.
Specifications
Core i9 12900KF technical specificationsGeneral
| Vendor | Intel |
| Released | October 27, 2021 |
| Type | Desktop |
| Instruction Set | x86-64 |
| Codename | Alder Lake |
| Model number | i9-12900KF |
| Integrated GPU | No |
| AMD Equivalent | - AMD Ryzen 9 5950X |
| Successor | - Intel Core i9 14900KF |
Intel CPU rating - 49th place
CPU
| P-Cores | 8 |
| P-Threads | 16 |
| Base Frequency (P) | 3.2 GHz |
| Turbo Boost Frequency (P) | 5.1 GHz |
| E-Cores | 8 |
| E-Threads | 8 |
| Base Frequency (E) | 2.4 GHz |
| Turbo Boost Frequency (E) | 3.9 GHz |
| Total Cores | 16 |
| Total Threads | 24 |
| Bus Frequency | 100 MHz |
| Multiplier | 32x |
| L1 Cache | 64K (per core) |
| L2 Cache | 14MB (shared) |
| L3 Cache | 30MB (shared) |
| Unlocked Multiplier | Yes |
Package
| Fabrication Process | 10 nm |
| TDP (PL1) | 125 W |
| Max. Boost TDP (PL2) | 241 W |
| Socket | LGA-1700 |
| Peak Temperature | 100°C |
Desktop CPU ranking - 51st place
Memory Support
| Memory Types | - DDR5-4800 - DDR4-3200 |
| Max. Memory Size | 128 GB |
| Memory Channels | 2 |
| Max. Memory Bandwidth | 76.8 GB/s |
| ECC Support | Yes |
Misc
| Official Site | Intel Core i9 12900KF official page |
| PCI Express Version | 5.0 |
| PCI Express Lanes | 20 |
| Technologies | - Compute: ABM, ADX, BMI1, BMI2, CLMUL, F16C, SHA
- Performance: EIST, TBT 2.0, TBT 3.0, TSX
- Virtualization: VT-d, VT-x
- Security: RDRAND, TXT, XD bit |