Gartner Research

Midrange RISC/Unix: The New Frontier for x86 Servers, 2013

Published: 04 March 2013

ID: G00245540

Analyst(s): Nik Simpson


By the middle of 2013, all the Unix and x86-based server platforms will be updated with faster processors and significant architectural changes, which begs the question, "Can the improved RISC/Unix platforms slow the migration of midrange workloads to x86 servers?"

Table Of Contents


  • Hardware Performance and Availability
    • Processor Capabilities
    • Memory Subsystem
    • I/O Subsystem
  • Operating System Capabilities
  • Application Software
  • Future Developments
    • Processor Improvements
    • I/O Bus Improvements


  • Underestimating the x86 Platform
  • Windows and Linux on Itanium
  • Application Requirements
  • Vendor Product Positioning
  • Platform Futures

The Details

  • Processing Power
    • Multicore Processors
    • Simultaneous Multithreading of Processor Cores
    • Core Speeds
    • Integrated Memory Controllers
    • Integrated I/O Controller
    • Scale-Up Architectures
  • I/O Subsystems
    • PCIe Bandwidth
    • PCIe Expandability
    • PCIe Reliability
  • Improved Server Reliability
    • Advanced Memory Protection
    • Processor Error Handling and Recovery


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