Intel Core Ultra 5 250K Plus Desktop Processor

Processor Core Count: 16
Processor Count: 18
Processor Socket: LGA 1851
Processor Series: Intel Core Ultra 5

Last refreshed Sep 9, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A capable unlocked chip for a fresh Intel 800 series build, best paired with a Z-series board and solid cooling to use the overclocking headroom it is built for.

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ASIN: B0GMKXVVJQCategory: CPU Processors

Overview

Intel Core Ultra 5 processor 250K Plus with 18 cores, 6 performance plus 12 efficiency, turbo clocks up to 5.5 GHz, built for the LGA1851 socket on Intel 800 series chipset motherboards.

This sits in Intel's current Ultra 5 lineup as an unlocked, overclocking-friendly chip for the newer LGA1851 platform, distinct from the older LGA1700 generation. The hybrid design pairs 6 performance cores with 12 efficiency cores, a layout aimed at balancing single-thread gaming speed with multi-threaded productivity work. Its 125W base and 250W max turbo power figures mean cooling and motherboard VRM capability matter more than with a lower-power chip.

18 cores: 6 performance cores plus 12 efficiency cores
Turbo boost up to 5.5 GHz
LGA1851 socket on Intel 800 series chipsets
Unlocked for overclocking on Z-series boards

Who it's for

Suits a builder assembling a new Intel 800 series platform who wants unlocked overclocking headroom and DDR5 support at up to 7200 MT/s. Not a fit for anyone with an existing LGA1700 board, since this requires the newer LGA1851 socket and a new motherboard purchase.

Pros and cons

Pros

18-core hybrid design balances gaming and multi-threaded work
Unlocked for overclocking on Z-series 800 chipset boards
Supports PCIe 5.0 and DDR5 up to 7200 MT/s

Cons

Requires a new LGA1851 motherboard, incompatible with older Intel boards
250W max turbo power calls for a capable cooler

Performance notes

The 6 performance plus 12 efficiency core layout lets heavier single-threaded tasks like gaming lean on the P-cores while background and multi-threaded work spreads across the E-cores, a split that generally favors responsiveness over raw multi-core throughput compared to an all-P-core design. Being unlocked, it needs a Z-series chipset board to actually access overclocking, and the 250W max turbo power figure means a cooler rated well above stock is worth budgeting for if you intend to push clocks. PCIe 5.0 and DDR5 at up to 7200 MT/s give it current-generation bandwidth for both storage and memory.

Specifications

Dimensions & fit
Brand	Intel®
Cache Memory Installed Size	0.03 GB
Item Weight	0.09 pounds
Item Dimensions L x W	4.6 × 1.7 inches
Capacity & performance
Cooling Method	Air
Power & efficiency
Wattage	125 watts
Included components
Unit Count	1
Warranty & support
Warranty Description	3 years
Other details
Processor Core Count	16
Processor Count	18
Processor Socket	LGA 1851
Processor Series	Intel Core Ultra 5
Processor Number of Concurrent Threads	36
Secondary Cache	30 MB
Processor Brand	Intel
Platform	Not Machine Specific
Number of Items	1
Mfr Part Number	BX80768250K
BuiltIn Media	Core Ultra 5 Process 250K Plus