Poser's only as fast as your computer runs. Sad, but true. Doesn't use the graphics processor on video cards at all. Which is something that definitely needs improvement. FYI: I use the Athlon XP 1400 with XP Pro and Poser 5. After installing the Athlon, I noticed Poser running faster than before. So speed of processor is good. NO problems with more speed that I've seen, but mine wasn't that much. From 800 to 1400 (technically 1600) isn't that big of a jump.