oh sure, try runing Oblivion and a antivirus scan in the background. the game will play extremly slow and the antivirus would need all day to finish. So don't talk nonsence. Sure you can play some old game like starcraft and have some 5 years old antivirus scaning in the background but i'm talking about current programs and games! Not really, core 2 duos are a lot faster than previous P4 processors. I'm talking about for example games. In current games now your second core will not be utilised and thus it's not adding 'FPS'(frames per second) but you can run an antivirus scan in your background, songs, do some compressing and stuff. So Core 2 duo's are a lot better than P4 or AMD x2 processors. check at www.anandtech.com and see the benchmarks and info!