I built a computer for a family member about 6 months ago with this processor overclocked to 2.0ghz. The motherboard is an Asus p5gc-mx with integrated graphics. The computer has been great so far, but obviously it's very budget oriented, so games don't run too well. My question is: without upgrading the CPU, would it be worth upgrading to an 8400gs or similar, or would the weak processor be too much of a bottleneck? All we're looking for is playable framerates on low settings for WoW and some source games. WoW is playable right now, but crowded areas really bog the system down.