Fredrik Eriksson wrote:

> As I understand it, XP Home supports multiple cores but is limited to a 
> single processor. XP Pro supports multiple cores and is limited to two 
> processors.

Micro$oft's own website is very vague on this point, but it appears that 
you're right: they limit physical CPUs, but not cores.

I found the following data for Vista:

http://www.winsupersite.com/showcase/winvista_editions_final.asp

(Scroll down to nearly the bottom for some charts.)

So, Vista supports 64-bit CPUs, eh? That's interesting... I wonder if 
anybody has tried it yet? (There is of course a 64-bit edition of WinXP. 
Unfortunately, it doesn't work properly... I'm wondering if the Vista 
one does.)

Also, only Business, Enterprise and Ultimate support 2 physical CPUs. (I 
find it surprising that Enterprise is limited to just 2... Maybe it's an 
omission of the chart?)

-- 
http://blog.orphi.me.uk/

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