AMD Athlon64 Systems

[Benny Amorsen]

On 2003-10-18 at 13:15, Mike A. Harris wrote:

> Your argument is entirely hypothetical however.  I've not seen 
> any proof that the increased cache footprint makes much of a 
> difference personally.  Speaking in terms of what exists today 
> here and now - AMD64 64bit OS and userland apps outperform x86 
> 32bit OS running on the same machine hands down.
> 
> If anyone has information to the contrary however, I'm definitely
> open eared and eyed to have a look at their non-hypothetical test
> results.  ;o)

How do you get non-hypothetical test results, when AMD64 does /not/
support the extra registers in 32-bit mode? The fact is that all other
CPU architecture which can run in both 32-bit and 64-bit mode are faster
in 32-bit mode. And there are non-hypothetical test results showing
that.


/Benny