XP 64-bit for Athlon64?

[Carlin]

Why isn't Windows XP 64-bit being offered for people who
buy Athlon64 CPUs? Does it not work with them or what? I'm
not buying an Itanium, and I still need a 64-bit version
of Windows.

 

[Chris Lanier]

This currently in development. There are two different version of Windows
XP 64Bit, as you said one for Intel chip (already out on new PC's) and for
the AMD. It will be running for release sometime next year. The AMD
Althlon 64 run Windows XP 32Bit.

 

[Guest]

-----Original Message-----
Why isn't Windows XP 64-bit being offered for people who
buy Athlon64 CPUs? Does it not work with them or what? I'm
not buying an Itanium, and I still need a 64-bit version
of Windows.
.

 

[Mike Brannigan [MSFT]]

Why isn't Windows XP 64-bit being offered for people who
buy Athlon64 CPUs?

Because we have not released it yet.

Does it not work with them or what?

No - you require a 64-bit opertaing system that is specific to you CPU , so
we have Windows XP 64-bit Edition Version 2003 for Intel Itanium II CPUs, we
are currently still working on the 64-bit version for the AMD CPUs.

I'm not buying an Itanium, and I still need a 64-bit version
of Windows.

Do you have specific requirements for 64-bit computation and use of massive
applications ?
Being in mind that even when we do ship the AMD64 64-bit version of the
Windows XP operating system, what applications are you going to run in
native 64-bit mode ? running 32-bit applications on any 64-bit processor
always (regardless of the technologies used) yields a poorer performance
then running cleanly on a 32-bit CPU.
I am currently not aware of ANY applications that are ready to run natively
in 64-bits on AMD64.

Why did you buy an AMD64 powered machine ?
--
Regards,

Mike
--
Mike Brannigan [Microsoft]

This posting is provided "AS IS" with no warranties, and confers no
rights

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[Alex Nichol]

Why isn't Windows XP 64-bit being offered for people who
buy Athlon64 CPUs? Does it not work with them or what? I'm
not buying an Itanium, and I still need a 64-bit version

The current 64 bit version of XP is for the 64 bit Intel Itanium - it
has a very different instruction set from Pentiums, or from the AMD
Opteron/Athlon 64 64 bit set, so it will not work with them. An AMD 64
bit version is in late stages of development - meanwhile Athlon64 will
run 32 bit code (though not that efficiently it seems) and will run a
standard 32 bit Windows