Intel Core i9 12900KS specifications and performance

Intel Core i9 12900KS is a 16 cores and 24 threads CPU processor produced by Intel. Intel Core i9 12900KS was released on 2022-04-04, the fabrication process is 10nm (nanometer), the CPU codename is Alder Lake, the instruction set architecture is x86-64, and the CPU's integrated graphics (iGPU) is UHD Graphics 770.

Basic Information

Vendor / Supplier Intel
Short name i9 12900ks
Release date 2022-04-04
CPU code name Alder Lake
Fabrication process 10nm (nanometer)
Instruction set architecture x86-64
Market Desktop
Integrated Graphics (iGPU) UHD Graphics 770

CPU core specifications

Total number of cores 16 cores
Total number of threads 24 threads
Number of performance cores 8 cores
Number of performance core threads 16 threads
Performance core base frequency / main frequency 3.4GHz
Performance core maximum turbo frequency 5.2GHz
Number of energy efficiency cores 8 cores
Number of energy-efficient core threads 8 threads
Energy efficiency core basic frequency / main frequency 2.5GHz
Energy efficiency core maximum turbo frequency 4.0GHz

CPU cache and frequency

Bus frequency 100MHz
L1 Cache 64 KB
L2 Cache 14 MB
L3 Cache 30 MB
Unlock multiplier Yes

Memory specifications

Maximum supported memory 128GB
Memory frequency support
  • - DDR5-4800MHz
  • - DDR4-3200MHz
Maximum number of memory channels 2
Maximum memory bandwidth 76.8GB/s
ECC support Yes

Package specifications

CPU Socket LGA-1700
Default thermal design power / TDP PL1 150W
Maximum Turbo Power Consumption / TDP PL2 241W
Maximum temperature 100°C
PCIe interface PCIe 5.0
PCIe lane count 20

Integrated Graphics specifications

Integrated Graphics (iGPU) Intel UHD Graphics 770
Base frequency 300MHz
Maximum acceleration frequency 1550MHz
Number of execution units 32
Stream Processors / Shading Units 256
Texture Units / TMUs 16
Raster Operations Units / ROPs 8
Total Graphics Power / TGP 15W
FP32 computing performance

Cinebench R23 performance test

Single core performance score
Multi-core performance score

PassMark performance test

Single core performance score
Multi-core performance score
Integer math 148 GOps/sec
Floating point math 112 GOps/sec
Find prime numbers 162 Million Primes/sec (Millions find prime numbers per second)
Random string sorting 61.5 Million Strings/sec (Millions random string sorting per second)
Data encryption 31.8 GBytes/sec (Gigabits per second)
Data compression 570.9 MBytes/sec (megabits per second)
Physics simulation 2480 Frames/sec (FPS)
Extended instruction test 35.4 Billion Matrices/sec (Billions matrix operations per second)

GeekBench v6 performance test

Single core performance
Multi-core performance
File compression 1300 MB/sec (megabits per second)
clang compilation 148.3 Klines/sec (thousands lines per second)
HTML5 browsing 429.8 pages/sec (pages per second)
PDF rendering 522.6 Mpixels/sec (megapixels per second)
Text processing 275.8 pages/sec (pages per second)
Background blur 71.8 images/sec (images per second)
Photo processing 151 images/sec (images per second)
Ray tracing 36 Mpixels/sec (megapixels per second)