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Maximum Number of Processors Supported by the Editions of SQL Server 2005

The following table specifies the maximum number of processors supported by each edition of SQL Server 2005.

SQL Server 2005 edition Number of processors supported (32-bit) Number of processors supported (64-bit)

Enterprise Edition

Operating system maximum1

Operating system maximum1

Developer Edition

Operating system maximum1

Operating system maximum1

Standard Edition

4

4

Workgroup Edition

2

N/A2

SQL Server Express Edition

1

N/A2

Evaluation Edition

Operating system maximum1

Operating system maximum1

1These editions of SQL Server 2005 support the maximum number of processors supported by the operating system.

2This edition of SQL Server 2005 is not available for the 64-bit platform in this release.

Release History

17 July 2006

Changed content:
  • Updated support for Standard Edition, which supports four processors, not the operating system maximum.
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