I have been looking at upgrading my CPU and I am wondering, I have a pentium dual core e2160 rated at 1.8ghz .. I saw a guy on Craigslist selling a pc with a Pentium D 352 with 3.2Ghz and it is a single core i know. But i am wondering if i bought the computer if i would notice a performance increase in gaming? it has half the L2 cache so I am not sure if it will be slower or faster. Also when i play games i have my music player playing in the background so i dunno if that would be multitasking and if it would slow it down?