I'm running a Geforce 960 that runs on custom-high settings (high settings with a few things buffed to max) at 1440p at about 45-50 frames.

Wouldn't specifically recommend this card because I am sure there are other options. I had to buy my card in a hurry (as my last GPU got fried.. Long story) so didn't have much time to research it.

Paid $250 AUD for it about 12-18 months ago, so about $190 USD, though it would likely be even cheaper than that if you're in the states, plus the card isn't the newest thing out there..

Hope this at least gives you a ballpark.