You're wasting your time if you try to mine with your GPU. As others have said, if you were trying to do this a few years ago, it would have made sense. Now, you'll be losing more money on electricity than generating coins. You're too late to the party, sadly. 
For the most part true. I use mine to mine coins with low diff that I like and don't mine running my gpu rigs on it. this gets me coins that i want without spending my btc on them.