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Processor · MODEL NOTES

Intel Core Ultra 5 245K

An LGA1851 and DDR5 starting point for users comparing a fresh Intel platform.

Check with my buildRead the specifications ↓
The decision

The 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.

Consider it when

  • A new DDR5 Intel desktop with a compatible LGA1851 motherboard.
  • Mixed work where specific application evidence supports this platform over the alternatives.

Look again when

  • A supposed drop-in LGA1700 upgrade or a plan to reuse DDR4 memory.

The checks that can change your choice

LGA1851 is a platform change

An existing LGA1700 board cannot accept this processor. Verify the cooler manufacturer’s explicit LGA1851 approval and kit requirements rather than assuming similar mounting dimensions settle compatibility.

Compare the 250K Plus as a complete offer

The Plus alternative has a different core configuration. Check its exact BIOS support and current local basket price; neither a higher model number nor more cores guarantees faster execution of your particular task.

Published specifications

14 cores / 14 threads; boost up to 5.2 GHz; LGA1851; DDR5; 159 W maximum turbo power; integrated graphics.

BrandIntel
Exact modelCore Ultra 5 245K
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 250K PlusThe 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.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 ↗AMD Ryzen 5 9600XCompare it with the 7600 including the cooler, and with the 9800X3D using evidence from your actual games. Keep the 9600X when the extra CPU spend has no clear job to do.Read this model’s tradeoffs ↗

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

Follow the check that matters to your build

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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Review this component with your existing selections before making the change.

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