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Rectangular green printed circuit board with gold contact pads and silver metal heat spreader branded Intel Core i9

Configurator

Configurator BX8071512900K_Conf_20220809 desktop processor

SKU CH-D3JB-9PRAQ MPN BX8071512900K_Conf_20220809

16-core desktop processor with 24 threads, up to 5.2 GHz turbo, 30 MB L3 cache, DDR4-3200 and DDR5-4800 support, and integrated UHD Graphics 770

  • Processors TypeDesktop
  • NameCore i9-12900K
  • CPU Socket TypeLGA 1700
  • Core NameAlder Lake
  • # of Cores16-Core (8P+8E)
  • # of Threads24-Threads
  • 16 performance and efficient cores handle parallel workloads
  • 24 threads accelerate multi-threaded applications and rendering
  • Up to 5.2 GHz turbo frequency boosts single-thread responsiveness
  • Supports DDR4 3200 and DDR5 4800 memory up to 128 GB
  • Integrated Intel UHD Graphics 770 provides display output without a discrete GPU

Processor identity

The Configurator BX8071512900K_Conf_20220809 is a desktop CPU based on the Intel Core i9-12900K with 16 cores split into 8 performance and 8 efficient cores. It delivers 24 threads, a 3.2 GHz P-core base frequency and up to 5.2 GHz max turbo. The chip targets enthusiasts who need high single-thread speed and heavy multi-thread throughput.

Platform requirements

Verify that your motherboard uses the LGA 1700 socket and a chipset that supports 12th Gen Intel processors. Choose DDR4 3200 or DDR5 4800 memory up to 128 GB across two channels. Ensure the board and cooler can handle 125 W base power and 241 W maximum turbo power. A BIOS update may be required for full compatibility.

Build and connectivity

The processor includes Intel UHD Graphics 770 with a 300 MHz base and 1.55 GHz max dynamic frequency. It provides 20 PCI Express lanes across 5.0, 4.0 and 3.0 revisions for GPU and storage. The 30 MB L3 cache and 14 MB L2 cache reduce latency. ECC memory support adds reliability for workstation workloads.

Highlights

  • 16 performance and efficient cores handle parallel workloads
  • 24 threads accelerate multi-threaded applications and rendering
  • Up to 5.2 GHz turbo frequency boosts single-thread responsiveness
  • Supports DDR4 3200 and DDR5 4800 memory up to 128 GB
  • Integrated Intel UHD Graphics 770 provides display output without a discrete GPU

Specifications

BrandIntel
Processors TypeDesktop
SeriesCore i9 12th Gen
NameCore i9-12900K
ModelBX8071512900K
CPU Socket TypeLGA 1700
Core NameAlder Lake
# of Cores16-Core (8P+8E)
# of Threads24-Threads
Operating FrequencyP-core Base Frequency: 3.2 GHz
E-core Base Frequency: 2.4 GHz
Max Turbo FrequencyIntel Turbo Boost Max Technology 3.0 Frequency: Up to 5.2 GHz
Single P-core Turbo Frequency: Up to 5.1 GHz
Single E-core Turbo Frequency: Up to 3.9 GHz
L2 Cache14MB
L3 Cache30MB
Manufacturing TechIntel 7
Instruction Set64-Bit
Hyper-Threading SupportYes
Memory TypesDDR4 3200 / DDR5 4800
Memory Channel2
Max Memory Size128 GB
ECC MemorySupported
Max Memory Bandwidth76.8 GB/s
Virtualization Technology SupportYes
Integrated GraphicsIntel UHD Graphics 770
Graphics Base Frequency300 MHz
Graphics Max Dynamic Frequency1.55 GHz
PCI Express Revision5.0 / 4.0 / 3.0
Max Number of PCI Express Lanes20
Thermal Design PowerProcessor Base Power: 125W
Maximum Turbo Power: 241W
Cooling DeviceCooling device not included - Processor Only
Operating System SupportedWindows 11
Shipping weight0.12 kg
Package size168 × 142 × 135 mm

Questions about this item

What comes in the box with the Core i9-12900K and do I need to buy a cooler separately?

The processor includes Intel UHD Graphics 770 with a 300 MHz base frequency and 1.55 GHz max dynamic frequency. A compatible LGA 1700 cooler rated for up to 241 W maximum turbo power must be purchased separately.

Should I choose DDR4 3200 or DDR5 4800 memory for this 16-core CPU?

Both DDR4 3200 and DDR5 4800 are supported in dual-channel mode up to 128 GB total. DDR5 4800 provides higher bandwidth while DDR4 3200 offers lower latency and cost; select based on motherboard compatibility and budget.

What does the 5.2 GHz turbo figure mean when the chip is installed in a system?

A single P-core can reach 5.2 GHz using Intel Turbo Boost Max Technology 3.0 when thermal and power headroom allow. Sustained all-core speeds will be lower and depend on cooling capacity and the 241 W turbo power limit.

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