I'm upgrading my computer, but I'm not sure weather to choose the opty or the 3200+. The opty is only at 1.8 and 3200+ is at 2.0, but how do their OCs differ? I don't have very good cooling but hopefully add a zalman 7000 eventually, if my case isn't too small. In other words, I'm not expecting a very high OC. So which one would be better?