Sort:  

What about altcoins? Is there a way to preview how much hashpower you will have with some GPU? I considering buying a new GPU to mine this month some altcoins like ethereum or some x11 coin. Any suggestion?

altcoin isnt that popular among miners but you can still check details on https://cryptojunction.com/mining-hardware/

Coin Marketplace

STEEM 0.23
TRX 0.21
JST 0.036
BTC 97755.04
ETH 3410.42
USDT 1.00
SBD 3.24