Richard Parmiter

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Windows memory allocation comparison (PAE) – All versions

Posted on August 7th, 2008

This link compares the versions of Microsoft Windows 2003 with the maximum memory supported in PAE.

http://msdn.microsoft.com/en-us/library/aa366778.aspx

Windows 2003

Version Limit in 32-bit Windows Limit in 64-bit Windows
Windows Server 2003 Service Pack 2 (SP2), Datacenter Edition 128 GB

64 GB with 4GT

2 TB
Windows Server 2003 Service Pack 2 (SP2), Enterprise Edition 64 GB 2 TB
Windows Storage Server 2003, Enterprise Edition 8 GB Not applicable
Windows Storage Server 2003 4 GB Not applicable
Windows Server 2003 R2 Datacenter Edition

Windows Server 2003 with Service Pack 1 (SP1), Datacenter Edition

128 GB

16 GB with 4GT

1 TB
Windows Server 2003 R2 Enterprise Edition

Windows Server 2003 with Service Pack 1 (SP1), Enterprise Edition

64 GB

16 GB with 4GT

1 TB
Windows Server 2003 R2 Standard Edition

Windows Server 2003, Standard Edition SP1

4 GB 32 GB
Windows Server 2003, Datacenter Edition 128 GB

16 GB with 4GT

512 GB
Windows Server 2003, Enterprise Edition 32 GB

16 GB with 4GT

64 GB
Windows Server 2003, Standard Edition 4 GB 16 GB
Windows Server 2003, Web Edition 2 GB Not applicable
Windows Small Business Server 2003 4 GB Not applicable
Windows Compute Cluster Server 2003 Not applicable 32 GB

Windows 2008

Version Limit in 32-bit Windows Limit in 64-bit Windows
Windows Server 2008 Datacenter (full installation) 64 GB 2 TB
Windows Server 2008 Datacenter (Server Core installation) 64 GB 2 TB
Windows Server 2008 Enterprise 64 GB 2 TB
Windows Server 2008 Standard 4 GB 32 GB
Windows Server 2008 for Itanium-Based Systems Not applicable 2 TB
Windows Web Server 2008 4 GB 32 GB

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Filed under Windows 2003, Windows 2008 |

2 Responses to “Windows memory allocation comparison (PAE) – All versions”

  1. Windows Small Business Server 2003 Service Pack 2 Says:
    August 24th, 2008 at 5:02 am

    I found your site on faves.com bookmarking site.. I like it ..gave it a fave for you..ill be checking back later

  2. How many Processor cores are supported by Windows 2003 Standard Edition | Richard Parmiter Says:
    September 16th, 2008 at 1:45 pm

    […] In the past there were some limitations emposed on Windows 2003 Standard Edition which in some situations would mean that you would need to spend a bit more money and buy the Enterprise version instead. One of these limitations was memory and specifically related to the PAE environment (as detailed here). […]

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