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General information
Designed byIBM
Max. CPU clock rate2.5 GHz to 5 GHz
L1 cache64+32 KB per core
L2 cache512 KB per core
L3 cache8 MB per chiplet
L4 cache16 MB per Centaur
Architecture and classification
Technology node22 nm
Instruction setPower ISA (Power ISA v.2.07)
Physical specifications
  • 6 or 12
IBM Power E870 can be configured with up to 80 POWER8 cores and 8 TB of RAM.

POWER8 is a family of superscalar multi-core microprocessors based on the Power ISA, announced in August 2013 at the Hot Chips conference. The designs are available for licensing under the OpenPOWER Foundation, which is the first time for such availability of IBM's highest-end processors.[1][2]

Systems based on POWER8 became available from IBM in June 2014.[3] Systems and POWER8 processor designs made by other OpenPOWER members were available in early 2015.

  1. ^ You won't find this in your phone: A 4GHz 12-core Power8 for badass boxes
  2. ^ "POWER8 Processor User's Manual for the Single-Chip Module" (PDF). IBM. March 16, 2016.
  3. ^ "IBM POWER8 - Announce / Availability Plans" (PDF). Archived from the original (PDF) on 2014-05-24. Retrieved 2014-05-23.

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