Need Help Choosing New Graphics Card

I am looking to switch to PC gaming and need help finding a graphics card to upgrade my computer to play the latest games.

My price range is about $50-150.  I need something that can play most of the latest games, such as Far Cry 3, Dishonored, etc. on high settings. Here are my system specs:
Intel Core i7 930 2.8 Ghz
6GB RAM
old video card: HD radeon 5000 series, probably 5700 or something

I'll be running on 1680x1050 resolution if that helps

Tl;Dr I need to find a quality graphics card to play new games on high within $50-150

look for the one with the highest number. that is always the fastest graphics card.

http://www.newegg.com/Product/Product.aspx?Item=N82E16814134153
Get this OP

Get a 7770. I'm running one at the moment and am able to near-max out Far Cry 3 at 1600 x 900.