How do I do that correctly?
What I did was set DISPLAY to :0, turn off xfire and then set DEVICE=0 (1, 2, 3, 4, 5).
Is that the way to do it?
Because...it sounds like a quite plausible explanation that I was only using ONE card. And if I addressed them with atitweak incorrectly as well...I also might be getting the funny performance figures.
Yes. But that's fine for me. I am still grilling my steak on the stove and not on the GPU :-)
I am mildly underclocking the cards, a bit intentional. Moreover, it is summer here and when I did some modest overlocking the cards locked up on me.