The R9-Fury X.
But I imagine you were looking for something a bit less over-kill?
A Fury X on 768p, lmao. That's way too much imo. What about the GTX 960 4g?
That will be great. Should be able to play at max settings at your rez. I presume you have a sufficiently powerful and good quality PSU?
Btw, I knew it was overkill. But it's still the best for your rez. And most other resolutions.
The latest Tomshardware GPU best value actually points toward the GT 730 being best value for 720p/768p. For max settings, I think a 750Ti/R7 370 would be fine.
Of course it's ridiculous. I was only trying to make the point to the OP that when you simply ask "which is the best gpu for 1360x768", BEST becomes a relative term. Specs, budget, etc. would narrow down the choices.