Comparisons between Windows 2003 Server

System Requirements

Published: June 24, 2002 | Updated: March 13, 2007
http://technet.microsoft.com/en-us/windowsserver/bb430827.aspx

Review the tables on this page to determine the minimum and recommended system requirements needed to run versions of the Microsoft Windows Server 2003 operating system. On This Page Microsoft Windows Server 2003 R2 Standard Edition Microsoft Windows Server 2003 R2 Enterprise Edition Microsoft Windows Server 2003 R2 Datacenter Edition Microsoft Windows Server 2003 Web Edition Windows Server 2003 Standard Edition Microsoft Windows Server 2003 Enterprise Edition Microsoft Windows Server 2003 Datacenter Edition

Microsoft Windows Server 2003 R2 Standard Edition

Component	Requirement
Computer and processor	PC with a 133-MHz processor required; 550-MHz or faster processor recommended; support for up to four processors on one server
Memory	128 MB of RAM required; 256 MB or more recommended; 4 GB maximum
Hard disk	1.2 GB for network install; 2.9 GB for CD install
Drive	CD-ROM or DVD-ROM drive
Display	VGA or hardware that supports console redirection required; Super VGA supporting 800 x 600 or higher-resolution monitor recommended

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Microsoft Windows Server 2003 R2 Enterprise Edition

Component	Requirement
Computer and processor	133-MHz processor required; 550-MHz recommended; up to eight processors supported on one server
Memory	128 MB of RAM minimum required; 256 MB or more recommended; 64 GB maximum for x86-based computers; 2 TB maximum for x64 and ia64 computers
Hard disk	1.2 GB for network install; 2.9 GB for CD install
Drive	CD-ROM or DVD-ROM drive
Display	VGA or hardware that supports console redirection required; Super VGA supporting 800 x 600 or higher-resolution monitor recommended

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Microsoft Windows Server 2003 R2 Datacenter Edition

Component	Requirement
Computer and processor	400 MHz processor required; 733 MHz processor recommended
Memory	512 MB of RAM required; 1 GB of RAM recommended; 128 GB maximum for x86-based computers; 2 TB maximum for x64 and ia64 computers
Hard disk	1.2 GB for network install; 2.9 GB for CD install
Other	Maximums: 64-way capable multiprocessor machine supported for 64-bit processors and 32-way capable multiprocessor machine supported for 32-bit processors

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Microsoft Windows Server 2003 Web Edition

Component	Requirement
Computer and processor	133-MHz processor (550 MHz recommended)
Memory	128 MB of RAM (256 MB recommended; 2 GB maximum)
Hard disk	1.2 GB for network install; 2.9 GB for CD install

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Windows Server 2003 Standard Edition

Component	Requirement
Computer and processor	PC with a 133-MHz processor required; 550-MHz or faster processor recommended (Windows Server 2003 Standard Edition supports up to four processors on one server)
Memory	128 MB of RAM required; 256 MB or more recommended; 4 GB maximum
Hard disk	1.25 to 2 GB of available hard-disk space
Drive	CD-ROM or DVD-ROM drive
Display	VGA or hardware that supports console redirection required; Super VGA supporting 800 x 600 or higher-resolution monitor recommended

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Microsoft Windows Server 2003 Enterprise Edition

Component	Requirement
Computer and processor	133-MHz or faster processor for x86-based PCs; 733-MHz for Itanium-based PCs; up to eight processors supported on either the 32-bit or the 64-bit version
Memory	128 MB of RAM minimum required; maximum: 32 GB for x86-based PCs with the 32-bit version and 64 GB for Itanium-based PCs with the 64-bit version
Hard disk	1.5 GB of available hard-disk space for x86-based PCs; 2 GB for Itanium-based PCs; additional space is required if installing over a network
Drive	CD-ROM or DVD-ROM drive
Display	VGA or hardware that supports console redirection required
Other	Windows Server 2003 Enterprise Edition, 64-bit version is compatible only with 64-bit Intel Itanium-based systems and cannot install on 32-bit systems

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Microsoft Windows Server 2003 Datacenter Edition

Component	Requirement
Computer and processor	Minimum: 400 MHz processor for x86-based computers or 733 MHz for Itanium-based computers; recommended: 733 MHz processor
Memory	512 MB of RAM required; 1 GB of RAM recommended; 128 GB maximum for x86-based computers; 2 TB maximum for x64 and ia64 computers
Hard disk	1.5 GB hard-disk space for x86-based computers; 2.0 GB for Itanium-based computers
Other	Maximum: 64-way capable multiprocessor machine supported

* Important: Please consider the following:

• Windows Server 2003 Web Edition is not available as an R2 release.
• The
  Enterprise and Datacenter editions of Windows Server 2003 with Service
  Pack 1 for Itanium-based systems cannot be successfully installed on
  32-bit systems.
• Windows Server 2003 may not use multiple
  processors with some Intel Pentium Pro or Pentium II processors. For
  more information, please see Knowledge Base article Q319091, Windows
  Server 2003 May Not Use Multiple Processors with Some Pentium Pro or
  Pentium II Processors.