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Home > About Cell/B.E. > Processor highlights

About Cell/B.E.

IBM PowerXCell 8i (3.2GHz) Processor highlights

PowerXCell 8i

Features

  • Enhanced Cell/B.E. for HPC and Enterprise
  • Improves double-precision floating- point
  • Maintains software compatibility with Cell/B.E.
  • Up to 16GB physical memory (Approximately 8 times more than first Cell)
  • 1 PPE(PowerPC Processor Element)
  • 8 Enhanced SPEs(Synergistic Processor Element)
  • 65nm SOI, Die size 212mm²

Performance

Single precision to 200 GFlops
Double precision to 100 GFlops
(Approximately 5 times faster than first Cell/B.E.)
Memory bandwidth 25.6 GB/s
I/O bandwidth 75GB

90 nm Cell/B.E. (3.2 GHz) Processor highlights

Cell Broadband Engine Processor[Enlarge]
Cell プロセッサ

Features

  • 241 million transistors
  • 1 PPE(PowerPC Processor Element)
  • 8 SPEs(Synergistic Processor Element)
  • 90nm SOI, Die size 235mm²

Performance

Single precision to 200 GFlops
Double precision to 20 GFlops
Memory bandwidth 25.6 GB/s
I/O bandwidth 35 GB/s (out)+25 GB/s (in)
EIB bus bandwidth to 200 GB/s
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