They adviced me to mine a coin with a smaller DAC, to have a better mining profit, but i don´t know wich one.
On the other side i saw people with r280x that can obtain 25 Mhs with their gpus, but i don´t know where is the difference.
I´m buying Rx570 gpu to mine, but i want to use the ones i have, if that can be done.
Thank you
That advice was 100% correct for Tahiti cards.
Mining an ETH-based altcoin (MusicCoin, Ubiq, EXP) that was launched more recently means the DAG size is smaller, and thus postpones the TLB thrashing issue that caused 7970/280 on ETH to slow from ~26mh to ~14mh over the past year and a half.
ZEC is also a good option.