Need help with $350 GPU budget

AssumingUnicorn

Honorable
May 14, 2013
71
0
10,640
So I have $350 to upgrade my GPU from a XFX 6970 to something nice. Though I'm not sure what's the BEST bang for my buck, I'm looking at the EVGA GeForce GTX 650 Ti Boost Superclocked for $159.99 a pop (http://www.newegg.com/Product/Product.aspx?Item=N82E16814130910). I'm pretty sure it can SLI so it'd be pretty nice with the already good factory clock speed. Any suggestions?