"Processor speeds are not as important as you might think." Within Poser itself, CPU speed actually counts slightly more than RAM -- rendering itself is entirely done by the CPU, and the entire scene is stored in RAM while rendering occurs. CPU speed does matter. Poser and Bryce do not utilize advanced capabilities of video cards, however, so video cards are not as important when it comes to Poser itself (although they affect other things -- games, for example, lol).

thou and I, my friend, can, in the most flunkey world, make, each of us, one non-flunkey, one hero, if we like: that will be two heroes to begin with. (Carlyle)