Источник:
http://dynamicsuser.net/blogs/waldo/...64-vs-x86.aspx
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I recently got an interesting explanation on why x64 is more interesting when your system has more than 4 Gb of memory. The background is the size of the memory. An x86 server system can manage a maximum of 4 GB of memory. This limits the addressable memory space for Windows server 2003 systems to 4 GB. (This is true for all 32-bit operating systems). With 2 GB reserved for the operating system by default on 32-bit Windows, only 2 GB of memory remains for SQL 2000 or SQL Server 2005 x86. You can...(
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Источник:
http://dynamicsuser.net/blogs/waldo/...64-vs-x86.aspx