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Intel Open box

Intel Core Ultra 5 245K Arrow Lake 14-Core 6P+8E LGA 1851 125W BX80768245K desktop processor

SKU CH-NE6T-ZEX54 MPN BX80768245K

14-core Arrow Lake desktop CPU with 6 performance and 8 efficient cores, up to 5.2 GHz turbo, 24 MB L3 cache, DDR5-6400 support, integrated graphics, 125 W base power

  • Product nameCore Ultra 5 245K
  • CPU cores14-Core (6P+8E)
  • CPU socketLGA 1851
  • Maximum turbo clock5.2 GHz Performance-core Max Turbo Frequency: 5.2 GHz Effici
  • TDP rating125 W
  • Processor classDesktop
  • 14 cores with 6 performance and 8 efficient cores handle heavy multitasking
  • 2 GHz max turbo on performance cores accelerates demanding single-thread workloads
  • 3 nm TSMC N3B process improves efficiency at 125 W base power
  • 24 MB L3 and 26 MB L2 cache reduce latency for large data sets
  • DDR5 6400 MT/s dual-channel support feeds bandwidth-hungry applications

Core Ultra 5 245K desktop processor

The Intel Core Ultra 5 245K is a 14-core desktop CPU built on the Arrow Lake architecture for the LGA 1851 platform. Six performance cores and eight efficient cores deliver 14 threads for gaming and productivity workloads. The chip targets enthusiasts who want modern core topology without stepping up to the flagship tier. It includes integrated Intel Graphics for display output and quick-sync tasks.

14 cores with 24 MB L3 and 26 MB L2 cache

The processor combines 6 performance cores at 4.2 GHz base and 5.2 GHz max turbo with 8 efficient cores at 3.6 GHz base and 4.6 GHz max turbo. The 24 MB L3 and 26 MB L2 caches keep data close for latency-sensitive code. Dual-channel DDR5 6400 MT/s supports up to 256 GB with ECC for workstation reliability. PCIe 5.0 and 4.0 lanes total 24 for GPU and storage expansion.

125 W base power and 159 W max turbo power

Thermal design power is rated at 125 W with a maximum turbo power of 159 W under heavy loads. A cooling solution is not included so builders must pair it with a capable air or liquid cooler. Integrated graphics run at 300 MHz base and 1.9 GHz max dynamic frequency for light media tasks. Intel Gaussian & Neural Accelerator 3.5 and Thread Director handle AI and scheduling duties.

How it compares

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

Price $158.99
Typical for this category: the median of 494 items is $149.99.
CPU cores 14-Core (6P+8E)
Higher than about 65% of the 271 comparable items (median 8).
Maximum turbo clock 5.2 GHz Performance-core Max Turbo Frequency: 5.2 GHz Efficient-core Max Turbo Frequency: 4.6 GHz
Higher than about 70% of the 246 comparable items (median 4.7 GHz).

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 5 (Series 2)
Model nameBX80768245K
Product nameCore Ultra 5 245K
Performance
Working frequencyPerformance-core Base Frequency: 4.2 GHz
Efficient-core Base Frequency: 3.6 GHz
Processor
CPU cores14-Core (6P+8E)
CPU socketLGA 1851
Maximum turbo clock5.2 GHz
Performance-core Max Turbo Frequency: 5.2 GHz
Efficient-core Max Turbo Frequency: 4.6 GHz
TDP rating125 W
Processor classDesktop
Processor codenameArrow Lake
CPU threads14-Threads
Level 2 cache26 MB
Level 3 cache24 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
Graphics max dynamic frequency1.9 GHz
Ports & slots
PCIe generation5.0 / 4.0
Power
Maximum turbo power159 W
Size & build
Shipping weight0.09 kg
Package size142 × 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

Will my current DDR5-6400 memory run at its rated speed with the Core Ultra 5 245K?

Yes, the processor supports up to DDR5 6400 MT/s across two channels, so existing modules at that speed will operate at their rated frequency.

How can I verify the Core Ultra 5 245K is boosting to 5.2 GHz after installation?

Monitor the performance-core frequency in Task Manager or a hardware utility while running a single-threaded load; it should reach 5.2 GHz if thermal and power headroom allow.

Does the BX80768245K box include a cooler or must I buy one separately?

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

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