IBM Power5 Chip: A Dual-Core Multithreaded Processor

  • Authors:
  • Ron Kalla;Balaram Sinharoy;Joel M. Tendler

  • Affiliations:
  • IBM;IBM;IBM

  • Venue:
  • IEEE Micro
  • Year:
  • 2004

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Abstract

Featuring single- and multithreaded execution, the Power5 provides higher performance in the single-threaded mode than its Power4 predecessor at equivalent frequencies. Enhancements include dynamic resource balancing to efficiently allocate system resources to each thread, software-controlled thread prioritization, and dynamic power management to reduce power consumption without affecting performance.