The two 7970's running at 788= 1130 core / 1745 mem, I 13, G 2, 8192 tc. Brand is XFX on these.
The one 7970 running at 746= 1070 core / 1690 mem, I 13, G 2, 8192 tc. Brand is HIS
The lame 7970 running at 540= 1050 / 1500, I 13, G 1 (will not run at g2) 8192 tc. Brand is HIS
The two 290x's running at 880= 900 core / 1495 mem, I 20 , G 1, 32765 tc. Brand is XFX on these.
Pretty impressive on that XFX brand 7970. I can only get around 700 KH/s.
http://zsprawl.com/iOS/2013/12/mining-bitcoins-in-esxi-using-an-xfx-7970/They have been running great for me. No complaints so far.