Well i'm looking forward to getting the GTX 770 Hopefully soon. So so should you
And if you play on a card two generations old, all on high and 60 fps. you'll no doubt be able to play on ultra easy. I've also got a 27" 1920x1080 Monitor. So go get it!
Here's a link to some benchmarks https://linustechtips.com/main/topic/61740-bf4-beta-benchmarks-released-amd-takes-cpu-performance-crown/
So as you can see the GTX 770 has Average of 66 fps and a minimum of 45 fps which is more than bearable for a minimum!
But keep in mind BF4 is a beta and there aren't 'proper' drivers for the game only beta ones too. So when the game eventually comes out and optimisation updates releasing soon after probably, those numbers will most likely increase.
Hope this helps!