Stefan Viljoen wrote:

> What exactly are the real world benefits?
> 
> I'm supposing it doesn't render twice as fast, but you can address more
> RAM (double the address size limit?), thus allowing for bigger and more
> complex renders?

About 20-30% speed increase should be typical but having said that I know
I'm gonna get my head slapped because those figures depend heavily on what
you're rendering.

Under 32bit OS your max-mem is 3Gb, under 64bit it's 2^64 which is huge.
I have run renders as large as 22Gb. (With 4Gb internal memory)

> 
> Would have been nice if it rendered twice as fast, though... but what is
> the real spead increase factor (if any?) on a benchmark scene? Seeing (if
> I'm not wrong, as usual) that the size of the processing "bites" you can
> take at one given instant is twice as large as on a 32-bit architecture?
> Or is this illusionary (the bus on most of these systems not being 64 bits
> wide? Or not?)

-- 
Ger

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