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Square green ceramic processor with gold contacts and silver heat spreader, boxed Intel Core Ultra 7 265K

Intel Refurbished

Intel Core Ultra 7 265K Arrow Lake 20-Core (8P+12E) LGA 1851 125W BX80768265K desktop processor

SKU CH-EN4E-7EE6P MPN BX80768265K

20-core Arrow Lake desktop processor with 3 nm manufacturing, up to 5.5 GHz turbo, 30 MB L3 cache and DDR5-6400 support

  • Product nameCore Ultra 7 265K
  • 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
  • Turbo speeds up to 5.5 GHz for responsive single-thread performance
  • 20 cores split into 8 performance and 12 efficient cores handle heavy multitasking
  • 30 MB L3 plus 36 MB L2 cache keep data close to the cores
  • DDR5 6400 MT/s dual-channel support feeds memory bandwidth to demanding workloads
  • 125 W base power with 250 W max turbo fits standard desktop cooling solutions

LGA 1851 Desktop Processor For New Builds

This Intel Core Ultra 7 265K fits the LGA 1851 socket and brings 20 cores with 20 threads. It runs performance cores at 3.9 GHz base and efficient cores at 3.3 GHz base. Maximum turbo reaches 5.5 GHz on the best core. The 3nm Arrow Lake architecture includes integrated Intel Graphics at 300 MHz base frequency.

Suits High-Thread Workloads And DDR5 6400 Memory

The 8 performance plus 12 efficient cores handle multitasking, content creation and gaming. Dual-channel DDR5 6400 MT/s support scales to 256 GB with ECC. PCIe 5.0 and 4.0 provide 24 lanes in multiple configurations. Buyers needing lower power draw or an older socket should consider other models.

125W Base Power With 250W Max Turbo Power

Thermal design power is 125W and maximum turbo power reaches 250W. A cooling solution is not included in the box. The processor supports Intel Gaussian & Neural Accelerator 3.5 and Thread Director for workload scheduling. This power envelope decides whether your cooler and power supply can sustain peak performance.

How it compares

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

Price $198.99
Pricier than about 61% of the 494 comparable items (median $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 nameBX80768265K
Product nameCore Ultra 7 265K
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 memoryUp to DDR5 6400 MT/s
Channel configuration2
Memory limit256 GB
ECC memorySupported
Graphics
Built-in graphicsIntel Graphics
GPU base clock300 MHz
Ports & slots
PCIe generation5.0 / 4.0
Power
Maximum turbo power250 W
Size & build
Shipping weight0.09 kg
Package size121 × 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

What socket and cooler clearance does the LGA 1851 Core Ultra 7 265K require?

The processor fits the LGA 1851 socket with a 125 W base power and 250 W max turbo power, so choose a cooler rated for at least 250 W and verify motherboard clearance around the socket.

Which BIOS step is often missed when installing the Arrow Lake 20-core CPU on a new motherboard?

Update the motherboard BIOS to the latest version before seating the processor; without it the system may not post or may run at reduced frequencies.

When should the thermal interface material be renewed on this 125 W desktop processor?

Replace the paste whenever the cooler is removed or if temperatures climb under sustained 250 W turbo loads; use a thin, even layer of quality compound.

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