Best GPU 160-170 USD

I hast bought a radeon 7750 in a general store, becuse i was in need of a card asap.

But i want to return it, as i think i can get a better card in the same price range.

GTX 650 or radeon 7770?
Others?

Im a fan of nvidia but can do with amd if there cards perform better in the price range.

I want to play Planetside 2, and i saw that the 7750 was the lowest on the requirement list but I'v tested it and it did not suffice even at the lowest Graphic settings.