Intel Core i9 12900KF

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.

Test in Benchmarks

Performance test of Intel Core i9 12900KF in benchmarks

Cinebench R23

Reputable cross-platform benchmark for high-performance processors
Cinebench R23 (Single-Core)
Cinebench R23 (Multi-Core)

GeekBench v6

The new version of this benchmark emulates common operations often used in real-world apps
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
File compression 1220 MB/sec
Clang compilation 139.1 Klines/sec
HTML 5 Browser 392.2 pages/sec
PDF Renderer 446.7 Mpixels/sec
Text processing 272 pages/sec
Background blur 49.1 images/sec
Photo processing 133 images/sec
Ray tracing 33.3 Mpixels/sec
Sources: GeekBench [1]


Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Integer math 138.9 GOps/sec
Floating point math 106.1 GOps/sec
Find prime numbers 146M Primes/sec
Random string sorting 57.7M Strings/sec
Data encryption 29.7 GBytes/sec
Data compression 539.6 MBytes/sec
Physics 2129 Frames/sec
Extended instructions 33.8B Matrices/sec
Sources: PassMark [3]


Core i9 12900KF technical specifications


Vendor Intel
Released October 27, 2021
Type Desktop
instruction set x86-64
Codename Alder Lake
Model number i9-12900KF
Integrated GPU No


Performance Cores
P-Cores 8
P-Threads 16
Base Frequency (P) 3.2 GHz
Turbo Boost Frequency (P) 5.1 GHz
Efficient Cores
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


Fabrication process 10 nm
TDP (PL1) 125 W
Max. Boost TDP (PL2) 241 W
Socket LGA-1700
Peak temperature 100°C

Memory Support

Memory types - DDR5-4800
- DDR4-3200
Memory Size 128 GB
Max. Memory Channels 2
Max. Memory Bandwidth 76.8 GB/s
ECC Support Yes


Official site Intel Core i9 12900KF official page
PCI Express Version 5.0
PCI Express Lanes 20


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