Intel Alder Lake Core i9-12900k CPU

CPU Specifications

Total Cores 

16

# of Performance-cores

8

# of Efficient-cores

8

Total Threads 

24

Max Turbo Frequency 

5.20 GHz

Intel® Turbo Boost Max Technology 3.0 Frequency ‡ 

5.20 GHz

Performance-core Max Turbo Frequency 

5.10 GHz

Efficient-core Max Turbo Frequency 

3.90 GHz

Performance-core Base Frequency

3.20 GHz

Efficient-core Base Frequency

2.40 GHz

Cache 

30 MB Intel® Smart Cache

Total L2 Cache

14 MB

Processor Base Power 

125 W

Maximum Turbo Power 

241 W

Supplemental Information

Marketing Status

Launched

Launch Date 

Q4'21

Embedded Options Available 

No

Datasheet

View now

Memory Specifications

Max Memory Size (dependent on memory type) 

128 GB

Memory Types 

Up to DDR5 4800 MT/s
Up to DDR4 3200 MT/s

Max # of Memory Channels 

2

Max Memory Bandwidth 

76.8 GB/s

ECC Memory Supported ‡ 

Yes

Processor Graphics

Processor Graphics ‡ 

Intel® UHD Graphics 770

Graphics Base Frequency 

300 MHz

Graphics Max Dynamic Frequency 

1.55 GHz

Graphics Output 

eDP 1.4b, DP 1.4a, HDMI 2.1

Execution Units 

32

Max Resolution (HDMI)‡ 

4096 x 2160 @ 60Hz

Max Resolution (DP)‡ 

7680 x 4320 @ 60Hz

Max Resolution (eDP - Integrated Flat Panel)‡ 

5120 x 3200 @ 120Hz

DirectX* Support 

12

OpenGL* Support 

4.5

OpenCL* Support 

3.0

Multi-Format Codec Engines 

2

Intel® Quick Sync Video 

Yes

Intel® Clear Video HD Technology 

Yes

# of Displays Supported ‡

4

Device ID

0x4680

New in box/ untested and covered by Intel- manufacturer limited 36 month (3 year) warranty