I want to try a profitable mining. Can you create a profitable mining rid with less than $600? 
Also what will its expect H/s Share your similar mining rig please 
Also what will its expect H/s
Share your similar mining rig please you can not mine btc with a gpu and turn a profit.
right now to turn a profit with a pc /gpu you need to mine ETH coin.
To turn a profit mining btc the s-7 and the s-9 may work but you need cheap power.
So if your power is 10 cents a kwatt or higher I would tell you mine eth coin.
You can build a rig for about 600 bucks it will also be a real pc and able to do other work.
here are the best and newest cards which go on sale soon
http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&IsNodeId=1&N=100007709%20601203818&Tpk=rx%20480&ignorear=1
