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Core i9-12900K
General Info
Designer	Intel
Manufacturer	Intel
Model Number	i9-12900K
Part Number	CM8071504549230, BX8071512900K, BXC8071512900K
S-Spec	SRL4H
Market	Desktop
Introduction	October 27, 2021 (announced) November 4, 2021 (launched)
Release Price	$589 (tray) $599 (box)
Shop	Amazon
General Specs
Family	Core i9
Series	i9-12000
Locked	No
Frequency	3,200 MHz
Turbo Frequency	5,100 MHz
Bus type	DMI 4.0
Bus rate	8 × 16 GT/s
Clock multiplier	32
Microarchitecture
ISA	x86-64 (x86)
Microarchitecture	Alder Lake, Golden Cove, Gracemont
Core Name	Alder Lake S
Core Family	6
Core Model	151
Core Stepping	C0
Process	Intel 7
Technology	CMOS
Die	215.25 mm²" 20.5 mm × 10.5 mm
MCP	No (1 dies)
Word Size	64 bit
Cores	16
Threads	24
Max Memory	128 GiB
Multiprocessing
Max SMP	1-Way (Uniprocessor)
Electrical
TDP	125 W
Tjunction	0 °C – 100 °C
Packaging
Package	FCLGA-1700 (LGA)
Dimension	45.0 mm × 37.5 mm
Contacts	1700
Socket	Socket V

Core i9-12900K is a 64-bit hexadeca-core high-end performance x86 desktop microprocessor introduced by Intel in late 2021. This processor, which is based on the Alder Lake microarchitecture, is manufactured on Intel's Intel 7 process. The i9-12900K is a heterogeneous multicore SoC integrating eight big Golden Cove cores along with eight small Gracemont cores. The big cores operate at 3.2 GHz with a Turbo Boost frequency of up to 5.1 GHz and a Turbo Boost Max frequency of up to 5.2 GHz. The small cores operate at 2.4 GHz with a Turbo Boost frequency of up to 3.9 GHz. This processor has a base power of 125 W and a maximum turbo power of 241 W. This chip supports up to 128 GiB of dual-channel DDR5-4800 memory and incorporates Intel's UHD Graphics 770 IGP operating at 300 MHz with a burst frequency of 1.55 GHz.

The i9-12900KF is an identical version of this chip without integrated graphics.

Cache

Main article: Alder Lake § Cache

This processor features 30 MiB of L3 cache shared among all the big cores and all the small core clusters.

Small Core

Main article: Gracemont § Cache

[Edit/Modify Cache Info]

Cache Organization Cache is a hardware component containing a relatively small and extremely fast memory designed to speed up the performance of a CPU by preparing ahead of time the data it needs to read from a relatively slower medium such as main memory. The organization and amount of cache can have a large impact on the performance, power consumption, die size, and consequently cost of the IC. Cache is specified by its size, number of sets, associativity, block size, sub-block size, and fetch and write-back policies. Note: All units are in kibibytes and mebibytes.

L1$ 768 KiB 786,432 B 0.75 MiB L1I$ 512 KiB 524,288 B 0.5 MiB 8x64 KiB     L1D$ 256 KiB 262,144 B 0.25 MiB 8x32 KiB     L2$ 4 MiB 4,096 KiB 4,194,304 B 0.00391 GiB     2x2 MiB     L3$ 6 MiB 6,144 KiB 6,291,456 B 0.00586 GiB     2x3 MiB

Big Core

Main article: Golden Cove § Cache

[Edit/Modify Cache Info]

Cache Organization Cache is a hardware component containing a relatively small and extremely fast memory designed to speed up the performance of a CPU by preparing ahead of time the data it needs to read from a relatively slower medium such as main memory. The organization and amount of cache can have a large impact on the performance, power consumption, die size, and consequently cost of the IC. Cache is specified by its size, number of sets, associativity, block size, sub-block size, and fetch and write-back policies. Note: All units are in kibibytes and mebibytes.

L1$ 640 KiB 655,360 B 0.625 MiB L1I$ 256 KiB 262,144 B 0.25 MiB 8x32 KiB     L1D$ 384 KiB 393,216 B 0.375 MiB 8x48 KiB     L2$ 10 MiB 10,240 KiB 10,485,760 B 0.00977 GiB     8x1.25 MiB     L3$ 24 MiB 24,576 KiB 25,165,824 B 0.0234 GiB     8x3 MiB

Memory controller

[Edit/Modify Memory Info]

	Integrated Memory Controller
	Max Type DDR5-4800, DDR4-3200 Supports ECC No Max Mem 128 GiB Controllers 1 Channels 2 Max Bandwidth 71.53 GiB/s 73,246.72 MiB/s 76.805 GB/s 76,804.753 MB/s 0.0699 TiB/s 0.0768 TB/s Bandwidth Single 35.76 GiB/s Double 71.53 GiB/s

Expansions

[Edit/Modify Expansions Info]

	Expansion Options
PCIe Revision: 5.0 Max Lanes: 16 Configuration: 1x16, 2x8 PCIe Revision: 4.0 Max Lanes: 4 Configuration: 1x4

Graphics

[Edit/Modify IGP Info]

Integrated Graphics Information

GPU UHD Graphics 770 Designer Intel Device ID 0x4680 Execution Units 32 Max Displays 4 Max Memory 128 GiB 131,072 MiB 134,217,728 KiB 137,438,953,472 B Frequency 300 MHz 0.3 GHz 300,000 KHz Burst Frequency 1,550 MHz 1.55 GHz 1,550,000 KHz Output DP, eDP, HDMI, DVI Max Resolution HDMI 4096x2160 @60 Hz DP 7680x4320 @60 Hz eDP 5120x3200 @120 Hz Standards DirectX 12 OpenGL 4.5 OpenCL 2.1 DP 1.4a eDP 1.4b HDMI 2.1 Additional Features Intel Quick Sync Video Intel Clear Video Intel Clear Video HD

Features

[Edit/Modify Supported Features]

Supported x86 Extensions & Processor Features

MMX MMX Extension EMMX Extended MMX Extension SSE Streaming SIMD Extensions SSE2 Streaming SIMD Extensions 2 SSE3 Streaming SIMD Extensions 3 SSSE3 Supplemental SSE3 SSE4.1 Streaming SIMD Extensions 4.1 SSE4.2 Streaming SIMD Extensions 4.2 AVX Advanced Vector Extensions AVX2 Advanced Vector Extensions 2 ABM Advanced Bit Manipulation BMI1 Bit Manipulation Instruction Set 1 BMI2 Bit Manipulation Instruction Set 2 FMA3 3-Operand Fused-Multiply-Add AES AES Encryption Instructions RdRand Hardware RNG ADX Multi-Precision Add-Carry CLMUL Carry-less Multiplication Extension F16C 16-bit Floating Point Conversion x86-16 16-bit x86 x86-32 32-bit x86 x86-64 64-bit x86 Real Real Mode Protected Protected Mode SMM System Management Mode FPU Integrated x87 FPU NX No-eXecute HT Hyper-Threading TBT 2.0 Turbo Boost Technology 2.0 EIST Enhanced SpeedStep Technology SST Speed Shift Technology TXT Trusted Execution Technology (SMX) vPro Intel vPro VT-x VT-x (Virtualization) VT-d VT-d (I/O MMU virtualization) EPT Extended Page Tables (SLAT) MPX Memory Protection Extensions SGX Software Guard Extensions Secure Key Secure Key Technology SMEP OS Guard Technology SIPP Stable Image Platform Program IPT Identity Protection Technology