I keep hearing that the new CPU's that are going to be in the next mac pro are going to be way faster but I don't understand why. Isn't the L2 Cache the same? (does the new ones have l3?) Isn't it still an 8 core Isn;t the clock speed the same? This is kind of a nooby question but I am very curious. Also do you think I will be able to upgrade the CPU's in my early 2008 mac pro to the new ones? I have put a new CPU in my pc but never in my mac pro.