Those RX 470 cards just won't die. Finally able to tune for power efficiency and decent hash rate. Running eight of these bad boys in an eBay enclosure. Mining ETC of course. :
ASUS Announces Graphics Cards For Cryptocurrency Mining - AMD RX 470 and NVIDIA P106-100 With 6GB GDDR5 Memory
Expected Ethereum Hashrate of the New AMD Radeon RX 470 GPUs - Crypto Mining Blog
Ethereum mining Asus Rx 470 4gb with 170mh on 780w power usage. - YouTube
ASUS RX 470 Mining Specs | TechPowerUp GPU Database
AMD RX 470 Mining Settings For Best Result
A Quick Look at the SAPPHIRE Radeon RX 470 Mining Edition - PC Perspective