32 or 64 bit version

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Indyron said:
Which version should I install...64 or 32 bit??
Thanks
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Depends on your CPU, basically 32 bit is what most people have, 64 bit are
newer processors, like Athlon 64. I am not sure, but 32 bit Vista 'should'
work with a 64 bit CPU, but you wont get the advantages that a 64 bit
version offers.
 
It is true that Vista x86 will run fine on a 64-bit processor. It is not
true that it will not benefit from the more advanced cpu. The 64-bit
processors have more "headroom" and 32-bit programs can benefit from this
even if the extended instruction set is not used.
 
It is true that Vista x86 will run fine on a 64-bit processor. It is not
true that it will not benefit from the more advanced cpu.
Click to expand...

Yes it is.
The 64-bit
processors have more "headroom" and 32-bit programs can benefit from this
even if the extended instruction set is not used.
Click to expand...

That's silly, 32bit code isn't going to run any faster or better on a
64bit processor than it would on a 32bit processor. Any "headroom"
WhateverTF that is, doesn't make any difference at all. The 32bit code
doesn't know that it exists, and it's not accessed or used in any way
at all.
 
Yes it does. The 64-bit processors provide greater headroom (more and wider
registers etc).
 
Yes it does. The 64-bit processors provide greater headroom (more and wider
registers etc).
Click to expand...

Wrt the width of registers, 32bit code, by definition, does not know
that registers can be wider than 32bits, and so it will *never* access
more than 32bits of a register. If the code knew how to use general
purpose registers that were wider than 32bits, then it wouldn't be
32bit code.

As far as there being more registers, that doesn't make any difference
either, if the software does not know that these additional registers
exist they will not be used... period.

I can beleive you're really trying to sell this "headroom" mumbo
jumbo.
 
Bob Young said:
Wrt the width of registers, 32bit code, by definition, does not know
that registers can be wider than 32bits, and so it will *never* access
more than 32bits of a register. If the code knew how to use general
purpose registers that were wider than 32bits, then it wouldn't be
32bit code.

As far as there being more registers, that doesn't make any difference
either, if the software does not know that these additional registers
exist they will not be used... period.

I can beleive you're really trying to sell this "headroom" mumbo
jumbo.

--
Regards,
Bob Young
Software Engineer
San Jose, CA.


Need help, running 98 windows, My internet explorer will not load, It states
Click to expand...
when i try to open, Is not a valid win32 application, it ran fine till we
accidently
ran an update on windows...... I think its version 6 of IE Thanks renee
 
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