I'm surprised to see so many advocates for blower coolers. I'm a layman what it comes to GPUs, but based on my personal experience, blower coolers are awful.
In 2012, I bought an EVGA GeForce 660 Superclocked card with a blower cooler, and by now it is causing me all kinds of problems, many of which probably happen because it overheats. I expect that the crappy blower cooler on it is a large reason for why that card is so faulty.
After that GPU crashes my system (often when it does so, a hear a sound as if a vacuum cleaner turned on inside of my PC; I think the sound originates from that GPU's blower fan becoming mega screwed up), which it does all the time, it is always very hot to the touch.
Now I have to buy a new GPU since that old one is defective. The RX 480 would be a good candidate, except that the blower cooler on is to me an instant red flag that screams, "This is crap, don't buy it." I like my hardware to last as long as possible, and blower coolers are counter-productive to that goal IMO. I expect that if I were to buy an RX 480 with a blower cooler, I'd probably have to replace that in a few years too.
AMD's designers should have known that blower coolers are bad and therefore decided instead to put something better on those cards. I can't see any reason why they wouldn't have, unless they wanted to be cheap and cut corners on quality.