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Rectangular green PCB chip with silver metal heatspreader and gold contact pads

Intel Refurbished

Intel Core Ultra 7 265KF Arrow Lake 20-Core LGA 1851 125W desktop processor BX80768265KF

SKU CH-GNQ9-CZ3J3 MPN BX80768265KF

A 20-core desktop processor with 30 MB L3 cache, up to 5.5 GHz turbo, DDR5-6400 support and 125 W base power for LGA 1851 platforms

  • Product nameCore Ultra 7 265KF
  • CPU cores20-Core (8P+12E)
  • CPU socketLGA 1851
  • Maximum turbo clockIntel Turbo Boost Max Technology 3.0 Frequency: Up to 5.5 GH
  • TDP rating125 W
  • Processor classDesktop
  • 20 cores and 20 threads handle heavy multitasking
  • Turbo Boost Max 3.0 reaches up to 5.5 GHz for peak single-thread speed
  • 36 MB L2 plus 30 MB L3 cache cut data latency
  • DDR5 6400 dual-channel support feeds fast memory bandwidth
  • 3 nm Arrow Lake architecture at 125 W base power

Socket and core layout

This Intel Core Ultra 7 265KF is a 20-core desktop processor built on the Arrow Lake architecture for the LGA 1851 platform. It combines eight performance cores and twelve efficient cores to deliver 20 threads for multitasking and heavy workloads.

Platform and memory compatibility

Verify that your motherboard uses the LGA 1851 socket and supports the Core Ultra Series 2 family with an appropriate chipset. The memory controller runs DDR5 6400 in dual-channel mode up to 256 GB, so confirm your board and modules match that specification.

Power and thermal envelope

The processor carries a 125 W base power rating and can draw up to 250 W under maximum turbo, so a cooler rated for that thermal load is required. No cooling device is included in the box.

How it compares

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

Price $161.99
Typical for this category: the median of 494 items is $149.99.
CPU cores 20-Core (8P+12E)
Higher than about 85% of the 271 comparable items (median 8).
TDP rating 125 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 Ultra 7 (Series 2)
Model nameBX80768265KF
Product nameCore Ultra 7 265KF
Performance
Working frequencyPerformance-core Base Frequency: 3.9 GHz
Efficient-core Base Frequency: 3.3 GHz
Processor
CPU cores20-Core (8P+12E)
CPU socketLGA 1851
Maximum turbo clockIntel Turbo Boost Max Technology 3.0 Frequency: Up to 5.5 GHz
P-core Max Turbo Frequency: Up to 5.4 GHz
E-core Max Turbo Frequency: Up to 4.6 GHz
TDP rating125 W
Processor classDesktop
Processor codenameArrow Lake
CPU threads20-Threads
Level 2 cache36 MB
Level 3 cache30 MB
Process node3 nm (TSMC N3B)
CPU instruction set64-Bit
CPU socket scalability1S Only
Max PCIe lanes24
Memory
Supported memoryDDR5 6400
Channel configuration2
Memory limit256 GB
Graphics
Built-in graphicsNone Integrated Graphics
Ports & slots
PCIe generation5.0 / 4.0
Power
Maximum turbo power250 W
Size & build
Shipping weight0.09 kg
Package size114 × 102 × 44 mm
In the box
Included coolerNot included - Processor Only
More details
PCI express configurationsUp to 1 × 16+2 × 4, 2 × 8+2 × 4, 1 × 8+4 × 4

Questions about this item

Does the BX80768265KF box include a cooler or do I need to buy one separately?

The processor is sold without a cooling device, so a compatible LGA 1851 cooler must be purchased separately.

Should I choose the 265KF or another Core Ultra 7 model if I want the highest turbo frequency?

This 265KF reaches up to 5.5 GHz with Turbo Boost Max 3.0, the peak frequency listed for the series.

What does the 5.5 GHz figure mean once the chip is installed in a real system?

It is the maximum single-core speed under Intel Turbo Boost Max Technology 3.0, available when thermal and power headroom allow.

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