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Rectangular green PCB desktop CPU with silver metal heat spreader and gold contact pads on the underside

Intel

Intel Core Ultra 5 250KF Plus BX80768250KF desktop processor

SKU CH-D9V0-KME8R MPN BX80768250KF

An 18-core desktop processor with six performance cores, twelve efficient cores, 5.3 GHz turbo, DDR5-7200 support, PCIe 5.0 and 24 lanes for discrete graphics builds

  • Processors TypeDesktop
  • NameCore Ultra 5 250KF Plus
  • CPU Socket TypeLGA 1851
  • Core NameArrow Lake Refresh
  • # of Cores18-Core (6P+12E)
  • # of Threads18-Threads

Options Core Ultra 5 250KF

  • 18 cores with 6 performance and 12 efficient cores for multitasking
  • P-cores reach 5.3 GHz max turbo for responsive gaming
  • 30 MB L2 and 30 MB L3 cache reduce latency
  • DDR5 7200 dual-channel support up to 256 GB memory
  • PCIe 5.0 and 4.0 with 24 lanes for fast storage and graphics

Core Ultra 5 250KF Plus overview

The Intel Core Ultra 5 250KF Plus is an 18-core desktop processor built on the Arrow Lake Refresh architecture. It targets enthusiasts who need strong multi-threaded throughput for gaming, streaming and content creation without integrated graphics overhead. The LGA 1851 socket pairs with Intel 800 Series chipset motherboards. A discrete GPU is mandatory for any video output.

Sustained load behaviour

The processor runs at a 125 W base power and can draw up to 159 W under maximum turbo. Six performance cores reach 5.3 GHz while twelve efficient cores hit 4.6 GHz, sharing 30 MB of L2 and 30 MB of L3 cache. DDR5 7200 memory on two channels feeds the cores during long render or compile sessions. The 24 PCIe 5.0 and 4.0 lanes keep high-speed storage and add-in cards saturated without throttling.

Build and connectivity implications

The absence of integrated graphics simplifies the die layout and removes a heat source, letting standard cooling solutions manage the 125 W baseline. Memory support tops out at 256 GB of DDR5, giving headroom for large project files. Native Thunderbolt and Wi-Fi 7 support on compatible boards reduce cable clutter and enable fast wireless peripherals. The LGA 1851 mounting pattern uses the existing cooler hole spacing for straightforward installation.

Highlights

  • 18 cores with 6 performance and 12 efficient cores for multitasking
  • P-cores reach 5.3 GHz max turbo for responsive gaming
  • 30 MB L2 and 30 MB L3 cache reduce latency
  • DDR5 7200 dual-channel support up to 256 GB memory
  • PCIe 5.0 and 4.0 with 24 lanes for fast storage and graphics

Specifications

BrandIntel
Processors TypeDesktop
SeriesCore Ultra 5 (Series 2)
NameCore Ultra 5 250KF Plus
ModelBX80768250KF
CPU Socket TypeLGA 1851
Core NameArrow Lake Refresh
# of Cores18-Core (6P+12E)
# of Threads18-Threads
Max Turbo FrequencyP-core Max Turbo Frequency: 5.3 GHz
E-core Max Turbo Frequency: 4.6 GHz
L2 Cache30MB
L3 Cache30MB
Memory TypesDDR5 7200
Memory Channel2
Max Memory Size256 GB
Integrated GraphicsNone Integrated Graphics
PCI Express Revision5.0 / 4.0
Max Number of PCI Express Lanes24
Thermal Design Power125W
Max Turbo Power159W
Compatible Desktop ChipsetsIntel 800 Series Chipset
Shipping weight0.09 kg
Package size114 × 102 × 44 mm

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

How much heat does the 125W base power and 159W max turbo power generate during all-day workloads?

The processor runs at a 125W base power and can reach 159W max turbo power, so sustained loads will produce significant heat that requires a capable cooler.

Which motherboard socket and chipset must I already have for the LGA 1851 CPU to work?

You need a motherboard with an LGA 1851 socket and an Intel 800 Series chipset for this processor to function.

Will my existing PCIe 4.0 graphics card and DDR5 memory run at full speed with the 24 PCIe 5.0/4.0 lanes and DDR5 7200 support?

Yes, the 24 lanes support both PCIe 5.0 and 4.0, so a PCIe 4.0 GPU works at its rated speed, and the memory controller runs DDR5 up to 7200 MT/s.

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