Woody nous apporta ses lumieres en ce 2007/11/05 19:09:
> Can anyone give me some insight into the advantages of using the version of
> POVRAY specifically meant for the 64 bit WinXP and and AMD 64 bit processor.
> 
> Hopefully runtime would be an advantage? Does anybody have any ballpark about
> how much faster? 50% faster 3300% faster?
> 
> Any other advantages?
> 
> 
It's not realy about speed, but about RAM access capacity.
With the 32 bits version, there is an absolute limit of 4Gb for the amount of 
RAM available, more like 2 to 3 Gb due to various OS limitations.
With the 64 bits version, that limit disapears, BUT, you also must be running a 
64 bits OS on a 64 bits CPU, with enough RAM installed.

This can come to a faster rendering IF you have a scene that need LOTS of space 
in memory (over 4Gb), have all the memory installed and can prevent the use of 
the swap file. Such a scene just CAN'T be rendered on a 32 bits system.

Any gain in speed don't come from the 64 bits processing, but from the generaly 
more clock effecient 64 bits processors.

-- 
Alain
-------------------------------------------------
You know you've been raytracing too long when your idea of a complete computer 
is a fast CPU, lots of RAM, and a means of running POVray.
Aaron Gage a.k.a Slartibartfast

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