If you want to do extreme multitasking, then get the pentium 4 dual core EE. By extreme, I mean like encoding a movie, Playing Doom 3 on max, Having a Farcry demo running in the background, and Compressing your hard drive at the same time.. The Pentium 4 EE will def beat the x2 if you are planning on multitasking like that. But the x2 will beat the p4eedual core with general multitasking and gaming performance.