I did a render yesterday of a scene in teradome with dystopia and a figure. in P7 it took 4 hours and 38 minutes. I saved the pz3 and opened it in P8 and rendered it, it took 1 hour and 5 minutes in P8. I also have a quad core.  Every render i have done in P8 from my old pz3's have been significantly faster. P8 beats the heck out of P7 in render time.

Life is hard, but what a ride.