What is the best 7770 for OC?

[hitop999]

Hi all, am looking at getting a 7770, just wondering which would be the best card to get. Have been looking at the XFX DD edition, the Asus DirectCU or the MSI Twin Fan.

Any thoughts would be appreciated.

Cheers!!

 

[hitop999]

i know they are not the best cards to oc but its all i can get away with in my rig. i guess im just wondering which has the best cooling and voltage control