Intel Core i9 12900KF
[ INTEL ] Processors

Intel Core i9 12900KF

Overall Score
69/100
GRADE C · Average
[ EXPERT VERDICT · SUMMARY ]

Intel Core i9 12900KF is an engineering-tested processors achieving an overall rating of 69/100. It is positioned for balanced everyday compute and power efficiency.

Benchmark Performance Scores

Normalized 0–100 Scale
Efficiency
47/100
Rating: Poor
Performance
76/100
Rating: Good

Detailed Technical Specifications

CPU

CPU specifications for Intel Core i9 12900KF
Specification Value
Base Frequency (E) 2.4 GHz
Base Frequency (P) 3.2 GHz
Bus Frequency 100 MHz
E-Cores 8
E-Threads 8
L1 Cache 64K (per core)
L2 Cache 14MB (shared)
L3 Cache 30MB (shared)
Multiplier 32x
P-Cores 8
P-Threads 16
Total Cores 16
Total Threads 24
Turbo Boost Frequency (E) 3.9 GHz
Turbo Boost Frequency (P) 5.1 GHz
Unlocked Multiplier Yes

GeekBench v6

GeekBench v6 specifications for Intel Core i9 12900KF
Specification Value
Background blur 66.8 images/sec
Clang compilation 141 Klines/sec
File compression 1150 MB/sec
HTML 5 Browser 363.2 pages/sec
PDF Renderer 475.6 Mpixels/sec
Photo processing 138.5 images/sec
Ray tracing 33.9 Mpixels/sec
Text processing 274.8 pages/sec

General

General specifications for Intel Core i9 12900KF
Specification Value
AMD Equivalent -AMD Ryzen 9 5950X
Codename Alder Lake
Instruction Set x86-64
Integrated GPU No
Model number i9-12900KF
Released October 27, 2021
Successor -Intel Core i9 14900KF
Type Desktop
Vendor Intel

Memory Support

Memory Support specifications for Intel Core i9 12900KF
Specification Value
ECC Support Yes
Max. Memory Bandwidth 76.8 GB/s
Max. Memory Size 128 GB
Memory Channels 2
Memory Types - DDR5-4800- DDR4-3200

Misc

Misc specifications for Intel Core i9 12900KF
Specification Value
Official Site Intel Core i9 12900KF official page
PCI Express Lanes 20
PCI Express Version 5.0
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

Package

Package specifications for Intel Core i9 12900KF
Specification Value
Fabrication Process 10 nm
Max. Boost TDP (PL2) 241 W
Peak Temperature 100°C
Socket LGA-1700
TDP (PL1) 125 W

PassMark

PassMark specifications for Intel Core i9 12900KF
Specification Value
Data compression 532.8 MBytes/sec
Data encryption 29.2 GBytes/sec
Extended instructions 33.4B Matrices/sec
Find prime numbers 138M Primes/sec
Floating point math 104.8 GOps/sec
Integer math 138.3 GOps/sec
Physics 2054 Frames/sec
Random string sorting 56.7M Strings/sec

Performance Per Watt

Performance Per Watt specifications for Intel Core i9 12900KF
Specification Value
Blender / Watt 2.92 PPW
Cinebench 2024 / Watt 11.7 PPW
Geekbench 6 Multi / Watt 129.1 PPW
Passmark CPU Mark / Watt 324 PPW

Strengths & Limitations

Key Advantages

  • Comprehensive positive benchmark metrics recorded.

Key Considerations

  • No major hardware limitations flagged during benchmark run.

Direct Competitors & Alternatives

Methodology, Provenance & Verification

Score version 2026.1 · Data verified 2026-08-26 · Source: official manufacturer datasheets and standardized reproducible benchmark suites (Geekbench 6, Cinebench R24, 3DMark).

Original manufacturer documentation ↗

← Read Full Scoring Methodology Report Data Discrepancy