To get well above 60fps on ultra you would probably need a Nvidia gtx 670 or 680. I would wait to upgrade because both companies will be releasing their new series of graphics cards soon.
Not really, it looks like it will be late 2013 for AMD.
So then at my current resolution i should see 60+ with the 7870
If your CPU can keep up, there's a good chance even a 7850 would do 60 FPS at your resolution.