Windows and physical memory

August 8, 2008 at 9:24 am Leave a comment

Most people know that 32bit flavors of Windows XP and Vista have a supported RAM maximum of 4GB and 64bit flavors have a max of 128GB, well except for Home or Basic versions. But why those numbers? And why do some Server products have different limits for the same architecture, even up to 2TB?

Microsoft has various MSDN and TechNet articles listing the limits of the various Windows SKUs, but Mark Russinovich has published the best technical answer for how Windows manages memory. It’s the first of a series of posts he’ll be doing called ‘Pushing the limits of Windows.’  Recommended reading, especially if you want to know how big video cards affect the RAM available to Windows.

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Entry filed under: Gaming, Hardware, Technology.

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