single...


The 5870s have 2 crossfire tabs but the 6870s only have one... Im new to ATI/AMD cards in specific and multi gpu in general...
That lead me to believe I could not crossfire all of them together...


edit: should note that I have tried to crossfire the same model cards together... ie. both 5870s crossfired together and both 6870s crossfired together.. but both groups separate from eachother..