Ghz. Edition or Not?

Im looking at getting either the HD 7970 Ghz Editionor just the regular 7970. Whats the advantage of the Ghz Edition?

 

The advantage of any GHz edition card is that it is a guaranteed 1000mHz OC, and comes pre-binned at those speeds. For the price of a 7870GHz, though, I would get a 7870XT, if you can find one. It is based off the 79xx series GPU, practically a 7930. Very good for the money, but sometimes difficult to find.