980 ti is a great card, a little overkill for 1080P unless u run 144hz but it runs 1440P really well too. Like al pacino says, I would wait it out for another month or two and check new cards from both sides...nvidia is supposed to also be launching 1070 and 1080 around june, or so the rumors go. I think around computex or a private event before computex we'll get launch details for the new nv cards and amd will probably give us their details around that time too.
Don't know how fast they will be but 1070 could be close to or = 980 ti stock for $349 and 1080 should beat an oc ti or at least tie it...you'll get more info about dx12 and async abilities and whether or not the new cards will have enough brute force to win out... if...