Ok In this industry what I apply as a rule, 'if it don't say it and it's not the norm then don't assume it'. A couple of more things that may help you to gather a conclusion. I wouldn't think a company would make a product that has you go out and buy two of the competitors video cards to make it work and buy licensing from them for a feature they themselves produce a variant of. With a feature as prestigious as SLi andCrossfire I think it would be likely that a manufacture would advertise it to help promote sales.