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Intel Core i9-12900K desktop processor in LGA 1700 package with silver integrated heat spreader and gold contact pads

Configurator

Configurator Core i9-12900K 16-core 24-thread desktop processor

SKU CH-D3JB-9PRAQ MPN BX8071512900K

16-core desktop processor with 24 threads, 30 MB L3 cache and up to 5.2 GHz turbo for LGA 1700 platforms

  • Product nameCore i9-12900K
  • 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 cores plus 24 threads handle heavy multitasking
  • turbo boost reaches 5.2 GHz for single-thread speed
  • 30 MB L3 cache cuts memory latency
  • DDR4 3200 and DDR5 4800 memory support
  • integrated UHD 770 graphics drive displays without a discrete card

Processor identity and target workloads

The Core i9-12900K is a 16-core, 24-thread desktop processor built on the Intel 7 process. Eight performance cores and eight efficient cores deliver up to 5.2 GHz maximum turbo frequency. It suits content creators, developers and enthusiasts who need high multi-threaded throughput and strong single-thread responsiveness.

Platform and memory prerequisites

The processor fits the LGA 1700 socket and requires a motherboard with a compatible chipset and BIOS revision for 12th-generation Intel Core. Memory support covers dual-channel DDR4 at 3200 MT/s or DDR5 at 4800 MT/s up to 128 GB total. ECC memory is supported when the platform allows it. PCI Express 5.0, 4.0 and 3.0 lanes are available for graphics and storage devices.

Thermal envelope and integrated graphics

Base power is rated at 125 W with a maximum turbo power of 241 W, so a capable cooling solution is essential for sustained loads. The integrated Intel UHD Graphics 770 runs at 300 MHz base and up to 1.55 GHz dynamic frequency, providing display output without a discrete card. The 30 MB L3 and 14 MB L2 caches help reduce latency in memory-intensive workloads.

How it compares

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

Price $384.99
Pricier than about 80% 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 nameBX8071512900K
Product nameCore i9-12900K
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 nodeIntel 7
CPU instruction set64-Bit
Hyper-ThreadingYes
Virtualization supportYes
Max PCIe lanes20
Memory
Supported memoryDDR4 3200 / DDR5 4800
Channel configuration2
Memory limit128 GB
ECC memorySupported
Maximum memory bandwidth76.8 GB/s
Graphics
Built-in graphicsIntel UHD Graphics 770
GPU base clock300 MHz
Graphics max dynamic frequency1.55 GHz
Ports & slots
PCIe generation5.0 / 4.0 / 3.0
Size & build
Shipping weight0.12 kg
Package size168 × 142 × 135 mm
Compatibility
Compatible systemsWindows 11
In the box
Included coolerNot included - Processor Only

Questions about this item

Does the Core i9-12900K BX8071512900K come with a cooler or must one be purchased separately?

The processor is sold without a cooler; a compatible LGA 1700 solution rated for up to 241 W turbo power must be supplied by the builder.

Which memory standard should be chosen between DDR4 3200 and DDR5 4800 for this 16-core 24-thread CPU?

Both DDR4 3200 and DDR5 4800 are supported in dual-channel mode up to 128 GB; select based on motherboard compatibility and budget.

What does the 5.2 GHz Turbo Boost Max 3.0 frequency mean for real workloads on the Core i9-12900K?

It is the peak single P-core speed reachable under light loads when thermal and power headroom allow; sustained all-core speeds will be lower.

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