Re: Dupal Opteron on Sarge
> They can natively run 32 bit stuff with NO speed penalities
No speed penalty compared to what?
Amd64 chips do run 32-bit code "natively", and are competitive as 32-bit CPUs
in their own right. However you usually get a speed increase from recompiling
as a 64-bit app. In 64-bit mode you have more registers and 64-bit
arithmetic, which allow the compiler can generate more efficient code.
From what I've seen 64-bit apps tend to be ~10% faster then the 32-bit
equivalent.
Paul
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