Well.... Firstly no I don't think you should mine since you don't know what you doing you going to lose your money. Those miners cannot mine eth you use gpus to mine eth, so you just lost your money right there before you began. -_- Rather learn more about Bitcoin and eth and make a more informed and educated decision and then come back to us with a proper game plan.
There's a couple different sites that will allow you to estimate based on power consumption and price, and your hashrate (How fast you can mine, you can google each card to find out), how much money you can actually make mining. Unless you have a air conditioned room in your house dedicated to mining and relatively cheap electricity it probably won't be worth it. I heard some rumors about a guy out in Arizona who was using solar panels to power his bitcoin mining operation, pretty nifty if you ask me.
Wow you and the legendary member below are the only ones who posted something that was helpful and made sense the rest of them posted senseless dribble.