Hi all,

If you look at the end of a review of Opterons at 
http://www.linuxhardware.org/Features/03/12/17/189239.shtml, you can see 
benchmarks done with Pov-Ray compiled for x86-64 and for regular x86, 
using the same scene description. The images are non-identical, and I'd 
like to know why this is; is it just because all calculations are done 
with 64 bit precision, as the article says, or are there other 
differences in Pov-Ray's behaviour on x86-64 systems?

Thanks,
Nathan Cook

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