As of now it's hard to find a passive income of digital currency. I have read a tutorial about mining ethereum using 6 1070 gpu. The price of each gpu cost a lot. May I ask if making a mining rig of 6 gpu still profitable? And if it does, how much month will i make ROI for it.
Remember about 1 1070 GPu can give you around 28 MH/s But 1070 and 1070ti was different for the result of hashrate power. As the pre increase of ethereum difficulty and that makes the result of ethereum reward to the miners has been decreasing a half. Just a simple math for that. For each GPU you can get 28MH/s and then you have around 6 GPU.
28 x 6 = 168 Mh/s for the total hashrate powers that have owned by you.
I give you a link to the mining calculator from reliable source and that used the latest difficulty of ethereum.
https://www.cryptocompare.com/mining/calculator/eth?HashingPower=168&HashingUnit=MH%2Fs&PowerConsumption=2800&CostPerkWh=0.12&MiningPoolFee=1It looks like you will get back your ROI after you spend a lot of years to do that. Remember about the next update of ether will be another difficulty increase to support casper pos and i can say don't do that as per Ether will be migrating to the Pos in the future.