Separate process takes a little more time to render than integrated, and it also misses adaptive bucket size - so you should render with smaller bucket sizes (slower) on the separate process renderer. On the other hand, rendering in a separate process frees up a LOT of address space for the render itself. |'ve made several scenes that could only be rendered in the separate process renderer, taking up to 3.5 Gb of RAM while rendering (XP64).

But first of al those 4 gigs of RAM should be made available to your programs. In other words, you need a 64 bit operating system - XP64 or Vista64. With XP 32 bit each process can use up to 2 GB of memory (virtual or physical), with a 64 bit system this amount grows to at least 128 GB.

The pen is mightier than the sword. But if you literally want to have some impact, use a typewriter

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