Maximum memory on a 64-bit operating system?

62,460 pts.
Tags:
64-bit (x64)
Capacity planning
Memory management
Operating systems
SQL Server administration
SQL Server memory
I need to install a new SQL server and we are buying a 64-bit OS. What's the maximum amount of memory that the operating system can hold/support/make use of?

Software/Hardware used:
SQL server
ASKED: July 12, 2010  6:01 PM
UPDATED: July 13, 2010  2:46 AM

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It depends on the OS version.

Take a look at this:

<a href=”http://msdn.microsoft.com/en-us/library/aa366778(VS.85).aspx”>Memory Limits for Windows Releases (msdn)</a>

Discuss This Question: 2  Replies

 
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  • Radyair
    You aren't going to run this on some supercomputer cluster, right? Then your practical limits as of today are going to be: 32Gb RAM in Windows Standard 2008 (64 bit) 128Gb RAM in Windows HPC Edition 2008 (64 bit) 192Gb RAM limit in most current HP and IBM servers under $20,000 1 Tb RAM in Linux 2.6.28 kernel distributions and later
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  • ITKE
    [...] 10. Carlosdl and Radyair provided some great resources and general specs for the inquiry regarding the maximum memory on a 64-bit operating system? [...]
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