Intel cpu's are a better choice right now. You can even get a cheap core 2 duo processor (preferably penryn), overclock it to the maximum and have a way better processor than any dual core chip Amd has or will put to the market in the near future. Clock to clock a core 2 duo is at least 10% faster (can get a lot higher) than a phenom chip. If you consider also that a core 2 duo (penryn) chip can easily overclock to 3,5 Ghz, you will have to wait at least a year to see a phenom overclocked at 4 ghz, and just to be even
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System Specifications: Athlon64 3200+ @ 2,12 ghz, 1GB DDR RAM, 9600GT 512MB, 200+250 GB HD, Windows xp sp3