Currently, I have 6xR9 290 and I am mining ET. So far the profits are high. Moreover, the price of ETH is rising. but R9 power consumptions is high than RX series.
what if im just running 1 card?
nice!!
It is ok to only have one. Try dual mining some Eth + Decred. Google to do it. It's pretty easy with claymores dual miner. You can also mine a currency called WYV. Better then Eth for profit and nice for a beginner with one gpu. Mining is fun!! Have fun!!