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Key specs
Cores
16
Threads
24
Boost Clock
5.1 GHz
TDP
125 W
Socket
LGA-1700
Process
10 nm
Benchmarks
Rating
69
Cinebench 2024 Single-Core
115
Cinebench 2024 Multi-Core
1463
TDP
125 W Boost: 241 W
Cache L3
30MB
Cinebench 2024 (Single)
115
Cinebench 2024 (Multi)
1463
Geekbench 6 (Single-Core)
2686
Geekbench 6 (Multi-Core)
16,140
Passmark CPU (Single-Core)
4119
Passmark CPU (Multi-Core)
40,499
Blender CPU
365.61
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
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
General
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
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
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