f from left to right is oldest to newets middle is a top of the line I7 core asus far left is comp that melted battery and lots of work has been done too, far right is new comp that gets really hot also
I see you do think it is a 15 inch now. But the way you can tell is the two strips on the side of the keyboard, the speakers, the 13 inch doesn't have that
I saw the strips on the side, and they seemed small enough for a 13". But then I noticed that the strips were 2 keys wide, and not 1 like the 13"