On 3/18/2009 1:21 AM, Warp wrote:
>    Except that the x86-64 architecture has more processor registers than
> the x86-32 architecture, which means that 64-bit executables can be
> optimized by the compiler better than 32-bit ones. This can cause a
> measurable difference in speed.
>
>    (OTOH 64-bit programs will inherently consume more memory than 32-bit
> ones, which may also affect speed the other way around. Which one is more
> significant with POV-Ray, hard to say. I'd say the registers probably win,
> though.)

Both true, which is why you can't compare a 32bit app on one system to a 
64 bit app on another.

However, there's nothing wrong with comparing the same 32 bit app on two 
different 64 bit systems.

-- 
...Chambers
www.pacificwebguy.com

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