I'm looking for the best driver for this gpu. There is a special driver for the hd 7790 in AMD's site but it's last update was on 3/27/2013 . So i've been wondering should i get the latest catalyst driver or this specific hd 7790 one ?
The latest Catalyst should work for your 7790. The only reason I can find for a special release for the 7790 was because the card came out between regular driver releases.