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Intel Core i9-12900KF desktop processor in LGA 1700 package, silver heatspreader with gold contacts

Intel Open box

Intel Core i9-12900KF CM8071504549231 desktop processor

SKU CH-HZH7-NEM5E MPN CM8071504549231

16-core desktop processor with 8 performance and 8 efficient cores reaching 5.2 GHz turbo on LGA 1700

  • Product nameCore i9-12900KF
  • CPU cores16-Core (8P+8E)
  • CPU socketLGA 1700
  • Maximum turbo clockIntel Turbo Boost Max Technology 3.0 Frequency: Up to 5.2 GH
  • TDP ratingProcessor Base Power: 125 W Maximum Turbo Power: 241 W
  • Processor classDesktop
  • 16-core hybrid design with eight performance and eight efficient cores
  • 24 threads handle heavy multitasking and parallel workloads
  • Up to 5.2 GHz max turbo boost for peak single-thread speed
  • Supports DDR4 3200 and DDR5 4800 memory up to 128 GB
  • 30 MB L3 cache plus 14 MB L2 cache reduce latency

Product identity

The Intel Core i9-12900KF is a 16-core desktop processor built on the Alder Lake architecture. It combines eight performance cores and eight efficient cores to deliver 24 threads for demanding workloads. The chip fits the LGA 1700 socket and operates with a base power of 125 watts.

Hybrid core configuration

Eight performance cores run at a 3.2 GHz base frequency and can reach up to 5.2 GHz with Intel Turbo Boost Max Technology 3.0. Eight efficient cores operate at a 2.4 GHz base and boost to 3.9 GHz. The design provides 30 MB of L3 cache and 14 MB of L2 cache to keep data close to the cores.

Thermals and power

Processor base power is rated at 125 watts while maximum turbo power can reach 241 watts under heavy loads. No cooling device is included in the package so a suitable solution must be provided separately. The 10 nm manufacturing process helps manage heat density across the hybrid core layout.

How it compares

Measured against everything we stock in Desktop Processors, at today’s prices. Recalculated every night.

Price $236.99
Pricier than about 67% of the 494 comparable items (median $149.99).
CPU cores 16-Core (8P+8E)
Higher than about 70% of the 271 comparable items (median 8).
TDP rating Processor Base Power: 125 W Maximum Turbo Power: 241 W
Higher than about 70% of the 320 comparable items (median 95 W).

New to this? Buying a processor with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameIntel
Product lineCore i9 12th Gen
Model nameCM8071504549231
Product nameCore i9-12900KF
Performance
Working frequencyP-core Base Frequency: 3.2 GHz
E-core Base Frequency: 2.4 GHz
Processor
CPU cores16-Core (8P+8E)
CPU socketLGA 1700
Maximum turbo clockIntel 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
TDP ratingProcessor Base Power: 125 W
Maximum Turbo Power: 241 W
Processor classDesktop
Processor codenameAlder Lake
CPU threads24-Threads
Level 2 cache14 MB
Level 3 cache30 MB
Process node10 nm
CPU instruction set64-Bit
Hyper-ThreadingYes
Virtualization supportYes
Max PCIe lanes20
Memory
Supported memoryDDR4 3200 / DDR5 4800
Channel configuration2
Memory limit128 GB
Maximum memory bandwidth76.8 GB/s
Ports & slots
PCIe generation5.0 / 4.0 / 3.0
Size & build
Shipping weight0.09 kg
Package size116 × 101 × 44 mm
Compatibility
Compatible systemsWindows 11
In the box
Included coolerNot included - Processor Only

Questions about this item

How does the 16-core 8P+8E design behave once the chip is installed in a system?

The eight performance cores run at a 3.2 GHz base and can reach 5.1 GHz on a single core, while the eight efficient cores run at 2.4 GHz base and top out at 3.9 GHz, giving 24 threads for mixed workloads.

What memory speeds does the DDR4 3200 and DDR5 4800 controller actually allow?

The dual-channel controller supports up to DDR4 3200 or DDR5 4800, with a maximum capacity of 128 GB and peak bandwidth of 76.8 GB/s.

What cooler mounting and power delivery does the LGA 1700 package require?

The processor fits LGA 1700 sockets, has a 125 W base power and 241 W maximum turbo power, and ships without a cooling device.

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