legend001523 :
well, firstly, that would work, the pros are that you get a 30-50% gaming performance increase, the cons are that if you have bad airflow in your case they may overheat quicker as air is trapped more easily between the 2 cards
thanks for your reply, I don't think I would have a problem with airflow. I have a CM Storm Trooper case with 2 of its stock fans blowing straight to the card as of the moment and an H110 on top with fans pushing air out the case. I got other fans in there but back to the topic, its great to know that it'll work but do you think that I'll be spending more money on an oc'd card to sli with a reference card? I guess what I'm really asking is, would the oc'd card clock down to match the ref card or would it be the other way around. Searched around the net, have to say I couldn't really understand what the others were trying to say.