The *80 part meant high end...
Edit: Yall either young or dumb. Back then there was only one 90, 290. And it was two 280 chips on one board. Amd didn't sell anything above 80. It was literally high end. Nvidia was like 10% better and 30% more expensive at high end. rx480 was literally the highest end leading flagship latest and greatest amd gpu when it came out.
Kids these days don't even know what mid tier means...