Optimizing Data-Center TCO with Scale-Out Processors

B. Grot, D. Hardy, P. Lotfi-Kamran, B. Falsafi, C. Nicopoulos, Y. Sazeides

Research output: Contribution to journalArticlepeer-review


Performance and total cost of ownership (TCO) are key optimization metrics in large-scale data centers. According to these metrics, data centers designed with conventional server processors are inefficient. Recently introduced processors based on low-power cores can improve both throughput and energy efficiency compared to conventional server chips. However, a specialized Scale-Out Processor (SOP) architecture maximizes on-chip computing density to deliver the highest performance per TCO and performance per watt at the data-center level.
Original languageEnglish
Pages (from-to)52-63
Number of pages12
JournalIEEE Micro
Issue number5
Publication statusPublished - 1 Sep 2012


  • computer centres
  • costing
  • energy conservation
  • microprocessor chips
  • TCO metric
  • data-center TCO optimization
  • energy efficiency
  • on-chip computing density
  • scale-out processor
  • throughput
  • total cost-of-ownership
  • Computer architecture
  • Investments
  • Organizations
  • Performance evaluation
  • Program processors
  • Servers
  • System-on-a-chip
  • Scale-Out Processors
  • data centers
  • performance
  • total cost of ownership


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