^ The isn't quite worth the premium of $200 when a decent usb wifi adapter is only $20 and the Asrock performs the same pretty much in all benches.
Get the 7850. You'll see a huge perofrmance increase.http://www.newegg.com/Product/Product.aspx?Item=N82E16814150617
Not only that you can overclock the 7850 to the performance of a GTX 580 EASY. Many guides online just do a quick google.
Go with the Asrock Extreme4 Z77. Solid board for the price.