[mythtv-users] 32 bit or 64bit???

[jarpublic at gmail.com]

On Thu, Jan 15, 2009 at 9:12 PM, John Drescher <drescherjm at gmail.com> wrote:

> > Will you see any performance boost from 64-bit? Probably not.  Will
> > running 64-bit prevent you from doing something? Also very doubtful.
> >
> Theoretically there is a difference more than the extra address space.
> The processor has 8 extra integer registers and also 8 more SIMD
> registers that are not seen or used when you run 32 bit applications.
>
> The following link discusses this:
>
> http://en.wikipedia.org/wiki/X86-64
>
>
Task that don't max out your machine will run at basically the same speed.
So playback and response of the gui will likely not see any difference. You
may see some improvement if you do transcoding or other CPU intensive tasks,
and the programs have been compiled to take advantage of the extra features
of 64 bit ISA.
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