[lug] CPU comparisons

[karl horlen]

Someone else more versed on the subject could comment
on this better than I.  But part of the reason has to
do with that some OS's are 32 bit versus 64 bit.  And
I think it partially has to do with the architecture
of the system as well.

Some OS's get around the RAM limitations by using some
kind of mapped memory scheme that must page in memory
above the boundary.  

Others can post the gory details.

You'll obviously get better performance and probably
less headaches if your OS / architecture natively
support more memory rather than relying on "schemes"
to make it "appear" real.


--- siegfried <siegfried at heintze.com> wrote:

> Just curious:
> 
> When I was searching for a consumer grade PC in
> March, I could not find any
> that accommodated more that 4GB ram.  While 4GB is
> probably enough at this
> time, I can imagine getting certain customers where
> it would not be enough
> in the future. Have any of the consumer grade
> notebooks or desktop vendors
> graduated to accommodate more than 4GB of RAM? 
> 
> Why, in the past, have mother boards that
> accommodate more than 4GB been
> very expensive? They are just empty memory slots!
> Any predictions on when we
> will see notebooks that accommodate >4GB ram?
> 
> Thanks,
> Siegfried
> 
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