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Crysis 2 not really showing me the 3 GPU love at the moment, will return to it.
Single 7970 at max ULPS clocks of 1125/1575 @ 1.2V
2560x1440 11.2/41.7
1920x1080 16.9/61.1
I think your driver isnt install properly.
Gpuz shows 8.950.5.0 with catalyst version 11.12.
I have the same clocks 1125/1575 as you 66.8 avg at 1920x1080 http://forums.overclockers.co.uk/showpost.php?p=21550618&postcount=7
Unless new driver 8.960.0 boost crysis 2 so much.
Thanks for advice, have downloaded 960 drivers and am re-benching now.
Only 3 FPS improvement on newer drivers, multi-GPU is still very broken for me in this game. Fine in other games.
Edit: Problem seems related to MLAA and the new drivers. I disable AA and low and behold no more slide-show.
By disabling AA the frame rate more than doubles in both resolutions.
Looks like this (AA performance) is a known problem in Crossfire and it is broken.
I have posted on the Catalyst forum to confirm if there is a fix or not.
Still stuck at a single GPU for the time being.
1 x 7970 1300/1880/1.3V. 3960K @ 4.5GHZ
1440p - 69.2avg
1080p - 80.1avg
You forgot the AA for 2560x1440.
1x680 at 1218 > 2x580 @ defaults.
Nice.