Ian Collins <i...@ianshome.com> wrote:

> > If you have an orthogonal architecture like sparc, a typical 64 bit program 
> > is
> > indeed a bit slower than the same program in 32 bit.
> >
> > On Amd64, you have twice as many registers in 64 bit mode and this is the
> > reason for a typical performance gain of ~ 30% for 64 bit applications.
> >
> >    
> Do you have the data to back that up?  Most things I've looked at on X64 
> are slower in 64 bit mode.

Did you test on sparc or amd64? See above...

Jörg

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