What would be the better choice now that the 280x is more expensive? I need a card that can handle games that are very demanding, specifically ENBs for Skyrim at 1080p.
check benchmarks for the game?
http://www.tomshardware.com/reviews/geforce-gtx-770-gk104-review,3519-18.html
280x is roughly a 7970 so from what I can tell about the same