'Depends on the processor. Usually, with the processors backward compatible
with x86, the 32-bit version will use all the cores available. In other
words, it will not install with Intel's 64-bit Itanium processors - but
does work with Intel's EM64T and AMD's AMD64 processors and uses all the
cores available.
How much of a 64-bit processor does 32-bit Windows use? Well, you'd have to
look at processor architecture. "32-bit" refers to the size of each software
instruction the processor uses. AMD64 processors can handle both 32-bit and
64-bit instructions.
Here's some readin':
http://en.wikipedia.org/wiki/X86-64
Saucy
"Hipupchuck" <> wrote in message
news:qumdnUj0F-...
> What does 32 bit Vista do on a 64 bit processor? Does is use both cores in
> 32 bit mode or does it only use half the processor?
> If it uses both core, at the same time? or one then the other.
Linear Mode
