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Intel Core Ultra 7 265K desktop processor in a square green substrate with gold contacts and silver integrated heat spreader marked

Intel

Intel Core Ultra 7 265K Arrow Lake 20-Core LGA 1851 125W BX80768265K desktop processor

SKU CH-1J2F-N0FXQ MPN BX80768265K

20-core desktop CPU with 8 performance and 12 efficient cores, 3.9 GHz base frequency, up to 5.5 GHz turbo, 30 MB L3 and 36 MB L2 cache, DDR5-6400 support up to 256 GB, integrated Intel Graphics

  • Processors TypeDesktop
  • NameCore Ultra 7 265K
  • CPU Socket TypeLGA 1851
  • Core NameArrow Lake
  • # of Cores20-Core (8P+12E)
  • # of Threads20-Threads
  • 20 cores and 20 threads handle heavy multitasking
  • 5 GHz max turbo frequency speeds single-thread work
  • 36 MB L2 plus 30 MB L3 cache reduce data latency
  • DDR5 6400 MT/s support with 256 GB capacity feeds large datasets
  • Intel Graphics built in provides display output without a discrete card

Intel Core Ultra 7 265K Arrow Lake 20-Core LGA

This desktop processor targets enthusiasts and professionals who need high thread counts for rendering, compilation and multi-tasking. The 20-core hybrid design combines 8 performance cores and 12 efficient cores to scale across single-thread and parallel workloads. A 125 W base power rating fits standard tower cooling solutions.

20-Core Hybrid Architecture With 30 MB L3 And 36

Eight P-cores reach 5.4 GHz max turbo while twelve E-cores hit 4.6 GHz, with Intel Turbo Boost Max 3.0 pushing the best core to 5.5 GHz. The large L2 and L3 caches keep data close for heavy compute and large dataset tasks. Dual-channel DDR5 6400 MT/s support and 256 GB max memory capacity provide headroom for memory-intensive applications before bandwidth becomes a bottleneck.

Upgrade From Older LGA 1851 Platforms Or Competing

Moving to the Arrow Lake architecture on LGA 1851 delivers the 3 nm TSMC N3B process, 20 threads and integrated Intel Graphics in one package. The jump is worthwhile when current hardware limits multi-thread throughput or when DDR5 6400 MT/s memory support is required for new workloads.

Highlights

  • 20 cores and 20 threads handle heavy multitasking
  • 5 GHz max turbo frequency speeds single-thread work
  • 36 MB L2 plus 30 MB L3 cache reduce data latency
  • DDR5 6400 MT/s support with 256 GB capacity feeds large datasets
  • Intel Graphics built in provides display output without a discrete card

Specifications

BrandIntel
Processors TypeDesktop
SeriesCore Ultra 7 (Series 2)
NameCore Ultra 7 265K
ModelBX80768265K
CPU Socket TypeLGA 1851
Core NameArrow Lake
# of Cores20-Core (8P+12E)
# of Threads20-Threads
Operating FrequencyPerformance-core Base Frequency: 3.9 GHz
Efficient-core Base Frequency: 3.3 GHz
Max Turbo FrequencyIntel 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
L2 Cache36MB
L3 Cache30MB
Manufacturing Tech3nm (TSMC N3B)
Instruction Set64-Bit
Memory TypesUp to DDR5 6400 MT/s
Memory Channel2
Max Memory Size256 GB
ECC MemorySupported
Integrated GraphicsIntel Graphics
Graphics Base Frequency300 MHz
Scalability1S Only
PCI Express Revision5.0 / 4.0
PCI Express ConfigurationsUp to 1x16+2x4, 2x8+2x4, 1x8+4x4
Max Number of PCI Express Lanes24
Thermal Design Power125W
Max Turbo Power250W
Cooling DeviceCooling device not included - Processor Only
Advanced TechnologiesIntel Gaussian & Neural Accelerator: 3.5
Intel Thread Director: Yes
Intel Speed Shift Technology: Yes
Intel Turbo Boost Max Technology 3.0: Yes
Intel Turbo Boost Technology: 2.0
Intel Hyper-Threading Technology: No
Intel 64: Yes
Instruction Set: 64-bit
Instruction Set Extensions: Intel SSE4.1, Intel SSE4.2, Intel AVX2
Idle States: Yes
Enhanced Intel SpeedStep Technology: Yes
Thermal Monitoring Technologies: Yes
Intel Volume Management Device (VMD): Yes
Security & ReliabilityIntel vPro Eligibility: Intel vPro Enterprise
Intel Threat Detection Technology (TDT): Yes
Intel Active Management Technology (AMT): Yes
Intel Standard Manageability (ISM): Yes
Intel Remote Platform Erase (RPE): Yes
Intel One-Click Recovery: Yes
Intel Secure Key: Yes
Intel Control-Flow Enforcement Technology: Yes
Intel Total Memory Encryption - Multi Key: Yes
Intel AES New Instructions: Yes
Intel Trusted Execution Technology: Yes
Execute Disable Bit: Yes
Intel OS Guard: Yes
Intel Boot Guard: Yes
Mode-based Execute Control (MBEC): Yes
Intel Stable IT Platform Program (SIPP): Yes
Intel
Shipping weight0.09 kg
Package size121 × 102 × 44 mm

Questions about this item

Will the LGA 1851 socket on this Core Ultra 7 265K let me reuse my current DDR5 6400 MT/s memory kit?

The processor supports DDR5 up to 6400 MT/s across two channels with a maximum capacity of 256 GB, so existing DDR5 6400 modules will run at their rated speed.

How can I verify the 8P+12E core configuration is active after installing the BX80768265K?

In Task Manager or CPU-Z the core count will show 20 cores and 20 threads, with performance cores running at a 3.9 GHz base and efficient cores at 3.3 GHz.

Does the BX80768265K retail box include a cooler, or do I need to buy one separately?

The boxed processor ships without a thermal solution; a compatible LGA 1851 cooler rated for at least 125 W must be purchased separately.

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