okay, when it comes time to buy a video card, i need a little clarification on a few things. OKay say for instance im looking on newegg and Im comparing two video cards were runs at a 625mhz core clock speed , 1450 mhz memory speed , but only have 16 pixel pipelines and one that runs at a 450mhz core clock, with 1250 memory speed, but has 24 pixel pipelines, which do you chose. Can someone explain to me this whole pixel pipeline vs. a lower pixel pipeline card but with higher clock speed. If you had to chose from the 2 how do you know which one to go with, the one with lower clock speed but more pixel pipelines or visa versa. THanks.