Dupal Opteron on Sarge

[Steve Dondley <sdondley@gmail.com>]

I'm thinking about purchasing a dual Opteron server to run on Sarge. 
This is only my second server purchase.  My first server runs Debian
Woody on a single Petium 4, 2.8 GHz.

Can someone give me an idea of what kind of performance gain I would
see?  I've tried hunting around for benchmark comparisons but haven't
had success finding any because the processors target much different
markets.

Now for a more Debian specific question.  I read the AMD 64 how-to at
https://alioth.debian.org/docman/view.php/30192/21/debian-amd64-howto.html.
 They talk about "the quick way" of running 32-bit binaries on a 64
bit system and installing a "Debian IA32 chroot system."

Can someone tell me why I would do one over the other?

Thanks.


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