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Intel
Core Ultra 9 285K

The 285K has eight performance cores and sixteen efficient cores. Consider it for software that can use that parallelism; its 250 W maximum turbo power also belongs in the cooling budget. It requires an LGA1851 platform.

Reference: Exact cpu · MPN BX80768285K · ASIN B0DFWCM1CGMPN: BX80768285KCores / threads: 24 cores (8 P + 16 E) / 24 threadsClock: up to 5.7 GHzCache: 36 MB Intel Smart CacheSocket: LGA1851
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Intel Core Ultra 9 285K
MODEL PHOTOExact model shown
Best forLGA1851 builds whose motherboard firmware explicitly supports Core Ultra 9 285K.
Also strongBuyers who need 24 cores (8 P + 16 E) / 24 threads and can size cooling and power for 125 W processor base · 250 W maximum turbo.
Main limitSocket LGA1851 and up to DDR5-6400 are hard platform requirements; an adjacent CPU name does not guarantee compatibility.
Check first125 W processor base · 250 W maximum turbo is a processor specification, not a promise that every cooler or motherboard power design is adequate.
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EXACT CPU SHEET

MPN-specific identity, specifications, compatibility and buyer guidance

Confirmed specifications

  • MPN: BX80768285K
  • Cores / threads: 24 cores (8 P + 16 E) / 24 threads
  • Clock: up to 5.7 GHz
  • Cache: 36 MB Intel Smart Cache
  • Socket: LGA1851
  • Memory: up to DDR5-6400
  • Power: 125 W processor base · 250 W maximum turbo
  • Graphics: Intel Graphics, 4 Xe cores

Identity and platform check

MPN: BX80768285K

Amazon.ca ASIN: B0DFWCM1CG

  • Socket LGA1851 and up to DDR5-6400 are hard platform requirements; an adjacent CPU name does not guarantee compatibility.
  • 125 W processor base · 250 W maximum turbo is a processor specification, not a promise that every cooler or motherboard power design is adequate.
  • Memory overclocking profiles and maximum stable speeds still depend on the CPU, DIMM population, board QVL and BIOS.

Good choice for

  • LGA1851 builds whose motherboard firmware explicitly supports Core Ultra 9 285K.
  • Buyers who need 24 cores (8 P + 16 E) / 24 threads and can size cooling and power for 125 W processor base · 250 W maximum turbo.
  • A configuration where the exact BX80768285K identity is checked before checkout.

Real limitations

  • Socket LGA1851 and up to DDR5-6400 are hard platform requirements; an adjacent CPU name does not guarantee compatibility.
  • 125 W processor base · 250 W maximum turbo is a processor specification, not a promise that every cooler or motherboard power design is adequate.
  • Memory overclocking profiles and maximum stable speeds still depend on the CPU, DIMM population, board QVL and BIOS.

Alternatives

  • Core Ultra 7 265K for a lower tier on the same LGA1851 platform.
  • Core Ultra 5 245K for a lighter mixed-use LGA1851 build.
  • AMD Ryzen X3D when AM5 and gaming-cache priorities are preferred.
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Product and media sources · checked August 29, 2026Exact manufacturer sheet →Exact-media evidence →Exact Core Ultra 9 285K packaging/product photography cross-checked against MPN BX80768285K

FAQ

Questions about this exact CPU or memory kit

How do I verify the exact Core Ultra 9 285K?

Match Intel, the model and MPN BX80768285K; do not substitute an F, KF, boxed, tray or neighbouring-generation variant.

Which motherboard does it need?

This sheet specifies LGA1851. Also confirm the chipset, BIOS, power delivery and the board CPU-support list.

Is the memory speed guaranteed?

No. Memory type is a platform boundary; stable speed depends on the CPU, DIMMs, motherboard, BIOS and profile.

Why check cooling?

The 125 W processor base · 250 W maximum turbo specification is not sufficient alone; validate cooler, case and motherboard compatibility.

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