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Processor · MODEL NOTES

Intel Core Ultra 5 250K Plus

An eighteen-core Core Ultra 5 whose model name should not be confused with the 245K.

Check with my buildRead the specifications ↓
The decision

The 250K Plus has six performance cores and twelve efficient cores, with eighteen threads. Compare it with the 245K and 265K through your actual application mix. More efficient cores can matter for suitable parallel jobs, but do not establish a fixed gaming improvement.

Consider it when

  • A new LGA1851 build with applications that can use the specified hybrid-core configuration.
  • An existing supported Core Ultra desktop whose CPU workload justifies an upgrade.

Look again when

  • A DDR4 or LGA1700 reuse plan, or an upgrade made without checking application scaling.

The checks that can change your choice

Verify the Plus entry in the BIOS list

Intel specifies LGA1851, DDR5 and 159 W maximum turbo power for the 250K Plus. Check exact board support; a firmware version for the earlier 245K is not sufficient evidence.

Check the manufacturer document ↗

Separate accelerator support from marketing totals

Confirm that your software can use the CPU, GPU or NPU path you intend. Adding their advertised capabilities together does not predict one application’s processing rate.

Published specifications

18 cores / 18 threads; boost up to 5.3 GHz; LGA1851; DDR5; 159 W maximum turbo power; integrated graphics.

BrandIntel
Exact modelCore Ultra 5 250K Plus
SocketLGA1851
Memory generationDDR5
Integrated graphicsPresent; check outputs and workload support
Published power rating159 W — Intel Maximum Turbo Power

LGA1851 requires an Intel 800-series board with a BIOS supporting the exact CPU; memory overclock profiles are not guaranteed.

Catalog record checked . Manufacturer specifications. The individual references below show the dates used for these model notes.

A different choice worth checking

Intel Core Ultra 5 245KThe Core Ultra 5 245K uses a different socket from older Core i5 models. Compare its fourteen-core, fourteen-thread design using actual applications, not by equating core counts with a 14600K. Include the motherboard and any cooler mounting changes in the decision.Read this model’s tradeoffs ↗Intel Core Ultra 7 265KThe 265K provides twenty cores and twenty threads on LGA1851. It is a different platform and threading design from a Core i7-14700K, so compare application results and the full build cost rather than treating the two processor classes as direct substitutes.Read this model’s tradeoffs ↗Intel Core Ultra 7 270K PlusThe 270K Plus combines eight performance cores with sixteen efficient cores and twenty-four threads. Compare it with the 265K and 285K using a representative project; aggregate core counts and peak clocks cannot tell you the completion time or the best-value complete system.Read this model’s tradeoffs ↗

These alternatives address related choices. Recheck their platform, connections and fit before treating one as a replacement.

Parts lists using this exact model

These lists show the surrounding components and the tradeoffs. They are editable planning examples, not measured systems.

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Sources and review notes

RigAtlas connects manufacturer specifications to component choices. This page is document-based analysis; it does not claim a hands-on test or a current store offer.

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