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weblocked

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SQL Server 32 bit vs 64 bit

I currently have SQL Server 2012 Express 32 bit running on 64 bit Windows Server 2012. Unfortunately, the work and downtime it would require me to change this is rather high at this point.

My question:
Is the difference in architecture big enough to warrant the work necessary to uninstall the 32 bit and install 64 bit?

I can't find any information on the true performance potential difference.
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Kent Olsen
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Hi weblocked,

The biggest difference that you'll see is that the 64-bit architecture can more easily use much larger memories.  The are other differences, to be sure, but memory is the biggest one.

If your server isn't memory starved, I'd put off an upgrade until it's more convenient.


Good Luck,
Kent
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MajorBigDeal
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Haven't gone through this yet myself, but memory has gotta be the big one.  Did find a blog on MSDN that went through some of the factors and as mentioned by the previous people in this question, it depends a lot on what your current situation is.

http://blogs.msdn.com/b/sqlprogrammability/archive/2007/04/30/will-64-bit-increase-the-performance-of-my-sql-server-application.aspx
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