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Rectangular green CPU package with gold contacts and silver heat spreader, boxed Intel Core Ultra 7 265F

Intel

Intel Core Ultra 7 265F BX80768265F desktop processor

SKU CH-T6VN-KVSP8 MPN BX80768265F

A 20-core desktop processor with eight performance and twelve efficient cores, 30 MB L3 cache and DDR5 6400 MT/s support

  • Product nameCore Ultra 7 265F
  • CPU cores20-Core (8P+12E)
  • CPU socketLGA 1851
  • Maximum turbo clockP-core Max Turbo Frequency: Up to 5.2 GHz E-core Max Turbo F
  • TDP rating65 W
  • Processor classDesktop
  • 20 cores with 8 performance and 12 efficient cores handle heavy multitasking
  • Performance cores reach 5.2 GHz turbo for fast single-thread speed
  • 30 MB L3 plus 36 MB L2 cache reduce memory latency
  • Supports DDR5 6400 MT/s memory for high bandwidth
  • 65 W base power keeps thermal demands moderate

Socket and core layout

The Core Ultra 7 265F plugs into an LGA 1851 motherboard and delivers 20 cores split into 8 performance and 12 efficient units. It runs at a 65 W base power and has no integrated graphics, so a discrete GPU is required. The processor supports up to 256 GB of DDR5 memory across two channels.

Maximum turbo frequency

The highest single-thread speed reaches 5.3 GHz via Intel Turbo Boost Max Technology 3.0, while performance cores can hit 5.2 GHz and efficient cores 4.6 GHz. This peak frequency is the key figure for workloads that rely on burst single-core responsiveness.

Sustained multi-core behaviour

Under continuous all-core load the processor maintains its 65 W base power envelope with performance cores at 2.4 GHz and efficient cores at 1.8 GHz. The 36 MB L2 and 30 MB L3 caches help sustain throughput for extended compile, render or simulation tasks.

How it compares

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

Price $297.99
Pricier than about 74% 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).
Maximum turbo clock P-core Max Turbo Frequency: Up to 5.2 GHz E-core Max Turbo Frequency: Up to 4.6 GHz Intel Turbo Boost Max Technology 3.0 Frequency: Up to 5.3 GHz
Higher than about 70% of the 246 comparable items (median 4.7 GHz).

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Specifications

Product
Brand nameIntel
Product lineCore Ultra 7 (Series 2)
Model nameBX80768265F
Product nameCore Ultra 7 265F
Performance
Working frequencyPerformance-core Base Frequency: 2.4 GHz
Efficient-core Base Frequency: 1.8 GHz
Processor
CPU cores20-Core (8P+12E)
CPU socketLGA 1851
Maximum turbo clockP-core Max Turbo Frequency: Up to 5.2 GHz
E-core Max Turbo Frequency: Up to 4.6 GHz
Intel Turbo Boost Max Technology 3.0 Frequency: Up to 5.3 GHz
TDP rating65 W
Processor classDesktop
Processor codenameArrow Lake
CPU threads20-Threads
Level 2 cache36 MB
Level 3 cache30 MB
Process node3 nm (TSMC N3B)
CPU socket scalability1S Only
Max PCIe lanes24
Memory
Supported memoryUp to DDR5 6400 MT/s
Channel configuration2
Memory limit256 GB
Graphics
Built-in graphicsNone Integrated Graphics
Ports & slots
PCIe generation5.0 / 4.0
Power
Maximum turbo power182 W
Size & build
Shipping weight0.45 kg
Package size127 × 102 × 81 mm
Compatibility
Compatible desktop chipsetsIntel 800 Series Chipset
In the box
Included coolerIntel Laminar RM2
More details
PCI express configurationsUp to 1 × 16+2 × 4, 2 × 8+2 × 4, 1 × 8+4 × 4

Questions about this item

How does the 5.3 GHz Turbo Boost Max 3.0 frequency behave once the Core Ultra 7 265F is installed in a system?

The processor can reach up to 5.3 GHz on a single performance core when thermal and power headroom allows, while the 65 W base power and 20-thread design mean sustained all-core speeds will settle lower depending on cooling and workload.

What does the PCI Express 5.0 and 4.0 support on the Core Ultra 7 265F cap in practice?

The CPU provides up to 20 lanes of PCIe 5.0 for graphics and storage, with additional PCIe 4.0 lanes for other devices; actual bandwidth depends on the motherboard chipset and slot wiring.

What cooler mounting and clearance does the LGA 1851 socket on the Core Ultra 7 265F require?

The processor fits the LGA 1851 socket and has a 65 W base power; select a cooler rated for at least that TDP and verify physical clearance with your case and memory modules.

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