Power7: IBM's Next-Generation Server Processor

  • Authors:
  • Ron Kalla;Balaram Sinharoy;William J. Starke;Michael Floyd

  • Affiliations:
  • IBM;IBM;IBM;IBM

  • Venue:
  • IEEE Micro
  • Year:
  • 2010

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Abstract

The Power7 is IBM's first eight-core processor, with each core capable of four-way simultaneous-multithreading operation. Its key architectural features include an advanced memory hierarchy with three levels of on-chip cache; embedded-DRAM devices used in the highest level of the cache; and a new memory interface. This balanced multicore design scales from 1 to 32 sockets in commercial and scientific environments.