Ripped from a MS MVP page | |
For the most part, the x64 support in each Vista edition is identical.
One exception is that they each support different amounts of RAM.
Vista Home Basic (and Home Basic N) support up to 8 GB of RAM,
compared to 4 GB for all 32-bit versions of Vista.
Home Premium, meanwhile, supports 16 GB.
Business (and Business N), Enterprise, and Ultimate all support 128 GB or more of memory.
(The "or more" bit refers to the fact that there are currently no PCs available yet that suport over 128 GB of RAM; when that happens, these Vista versions will support it.)
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