Why is there so many AMD 2.4 GHz CPU's? Why does AMD have so many different versions of the 2.4 MHZ CPU's. They have the 3400, 3700, 3800, 4000, and of course the X2 4600 and 4800. I have the 3400, but I'm building a new computer and I'm probably going to get the X@ 4800. I sthere a significant difference between all these to justify so many, for instance is the 4000 that much better than my 3400 other than socket 939. If i was to go from the 3400 to the 4000, would i even notice a difference? I just happened to notice all the different versions of the 2.4 MHz processor and thought I'd ask the question.