Archived from groups: microsoft.public.windowsxp.hardware (
More info?)
OK most of what's written so far is great: in summary then:-
To use Dual CPU with Windows XP one must install XP Pro.
Two CPUs will ensure that for most applications and system functions, your
throughput will be better than a single CPU: on the premise that you had one
CPU in the first instance and then added an identical CPU in the second slot.
If one were to compare 2 x 1.5Ghz CPUs verses 1 x 3.0Ghz CPU then the single
CPU system will outperform a dual configuration. This is because of the
'overhead' on the system management functions when there is a multi CPU
environment. A case of 1+1 is not equal to 2 but more like 1+1 = 2 - 12%.
In order that an application can benefit from 2 CPs it must be written in
such a manner as to allow for dual processor mode. Otherwise the Operating
System has to manage that application using one a single CPU, so some games
will behave as if you were running on a 1.5Ghz System, if we use the example
above.
Now for a really good in depth report go to:
http://www.hardwareanalysis.com/content/reviews/article/1511.2/
"Jim Macklin" wrote:
> If you paid for two CPUs and the motherboard, you must use
> XP Pro for them to both be used at all, Windows XP Home will
> only see one processor. Windows XP Pro will see both CPUs
> and if the application or game is written to make use of two
> CPUs, then you will get an improvement in performance.
>
> The simple answer is that dual CPU REQUIRES XP Pro,
> otherwise you will only have one CPU support.
>
>
> --
> The people think the Constitution protects their rights;
> But government sees it as an obstacle to be overcome.
>
>
> "johnn" <johnjohn9191@hotmail.com> wrote in message
> news:ehs2cL9$EHA.3988@TK2MSFTNGP11.phx.gbl...
> | Is there any benefits to run Windows XP professional in
> Dual CPU PC ?
> | Will XP makes use of both CPU for faster processing ?
> |
>
>
>
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