I have a friend looking at some of the same cards, Do a little searching and look at some of the reviews, I don't know which one but there was one brand that was slower clocked than the rest and had a lot of complaints about running real hot, I remember Tom's hardware did that review but don't remember which brand card he was testing. There all close but each have there minor differences so do a little searching and it will give you an idea which has higher points vrs the next one.
Dauntae