a) It depends on the image.. renders that normally take 2 minutes or so won't see any difference because it might take just that much extra time to do the communicating between the two computers. B) If one computer is very slow.. obviously it won't make a difference. C) I have 5 comps connected and rendering is MUCh faster when using bryce lightning than when rendering on one computer. about 1/3 to 1/4 the original time. D) it's even better than multi processor computers or hyperthreading.