Ha. My roommate just picked up a rx580 to play with, and wouldn't ya know it, elpida memory. Doesn't appear to like one-click memshift either. Still warrants further research though, the hashrate on it is no better than my 570s.
Hashrate for570/580 are really similar and with good memory for example hynix you could beat 580. But it all goes with single card. my hynix give me less then my micron
