For the GTX 980 my Graphics card box contains "REF" on the front, the picture of the box in question that was purchased on amazon originally did not say REF.
Is there any difference between the two?
Is one better than the other?
Also before I open it, does the ACX2.0 have a REF as well? I'm hearing people say the one fan version is the REF. (I honestly don't even know which version runs cooler?)