It is the normal 560 gtx, not 560 TI. Btw, what is TI?
If you get are 560's, get the 560 TI instead. But I suggest either a 570 or 580, as if you are just playing WoW they would have better longevity and 2x560's is overkill for WoW anyway.
But thats just like.....my opinion man...