Hi Guys!
I'm currently in the market for a 7970 for mining. On the MHC wiki, some 7970's can go around 750 MH/s, but after browsing many forums, people seem to be frequently having trouble with 7970s, resulting in speeds closer to 500 MH/s.
So, which 7970 is currently the best to get?
(I'm looking mainly at cards with NON-reference coolers, and an unlocked voltage is good to overclock and get more MH/s!)
Also, do any of you have the 7970? If so, which brand, and what speeds are you looking at?
Thanks a lot guys!
-Dan
I would recommend the Sapphire 7970 Vapor-x Ghz. It has very good cooling, will get you 730 Kh/s scrypt undervolted and underclocked, you could push more out of it with tweaking.
You have to flash one of the bios's but it's a piece of piss. I got two happily mining away at 1.45 Mh/s avr right now

Anyways bed time for me, i will try and help anyone who need it tomorrow.