Desktop: Quad 2.5Ghz processors, 8Gb RAM, 1Gb Nvidia graphics card, Win 7 Pro 64-bit.

Laptop: i5 processors, 4Gb RAM, 1Gb Nvidia graphics Card, Win 7 Home 64-bit.

These days I almost invariably use PP2010 over any older version of Poser. I found the 64-bit OS made a huge difference to render times when I upgraded to it on the desktop earlier this year (previously it was running Vista Home, and took nearly 20 minutes just to boot up). 

Haven't noticed much difference on older Posers, but I only keep P5, P7 and P8 installed for compatibility testing.

I only have PP2010 installed on the laptop, with a mirror of my desktop's runtimes. If anything, it runs faster than the desktop, which I attribute to it being a new, clean machine, whereas the desktop is now a couple of years old and stuffed with my usual digital clutter.

Andy Staples
The Penultimate HârnPage -- www.penultimateharn.com