They seem like nice cards if you are on a budget. I'd go one Nvidia before I'd go two AMD. Sounds like AMD has some more aggressive cards coming in a few months and Nvidia is going to announce some lower grade cards this month or next that might pull the shine of AMD's offerings.
Yea, sucks right now to have money to burn. I sort-of need a new graphics card as I am now getting dips into the 35-40FPS level on my games, but I really need to wait and see if there is going to be a price cut on the 1080. If they cut the 1080 to $500 that is the way I will go. Unless I get 100% fed up with Windows and go full Linux, then I have to go AMD due to the drivers working much better on Linux and AMD's commitment to FOOS. I still want to puck up to of the cards and at least play with them and tinker with overclocking. I have a group of friends who can always use my hand-me-downs and will pay me 1/2 what I shelled out for the cards as well. I'm giving everything a week. If by the end of next week the cards are in stock, I'll have to post a report on my findings here for you all.
http://www.pcper.com/reviews/Graphics-Cards/Power-Consumption-Concerns-Radeon-RX-480 A bit about the power draw. We'll know in a week or two if it's really a mother board melting problem I'm a fee weeks. Skip to the end of the article to avoid all the technical blather.
Two things. Over clocking benefits were minimal and your going to need some decent cooling to get your 1-4% improvement. sounds like the software for over cooling is better than ever. The card is pulling twice the power most motherboards are rated for under certain conditions from the motherboard (over clocking and some other times). Don't buy one until this is cleared up.