The new dual core will have 2 CPU's in one, making multitasking much quicker.... For example you could be browsing and downloading and playing a movie and defraging your hard drive all at the same time with a virus scan going on also : ) All these tasks will be split between the CPU's... Its like 2 brains is better than one (or quicker) AMD has the X2 4400+ 4600+ and 4800+ at the moment... Also P4 have a dual core aswell...
