i'm personally holding off until the next x70 card, as it'll probably be a smaller, more energy efficient version of the 980
but if i was going from a 760 i'd go ahead and make the jump to 980, sure. 970 is a beast but why not go the extra mile
So you understand what you're looking for, the 970 and the 980 are the same GPU, the 970 just has bits of it turned off through the binning process.
The 970 and 980 are the mid-tier Maxwell product, with the Titan X/(possible 980 Ti or 1080, whatever they call it) as the high end Maxwell product.
You won't see something that consumes less power until their next architecture drops, which will be about 1.5-3 years from now. Again, they'll likely release the mid tier GPU as the 1070/1170 and 1080/1180 - depending on what they decide to do with naming the 980 Ti/1080 card.
I'm looking into getting an AMD card next time I upgrade if they offer a better price to performance than Nvidia. It has nothing to do with that and I keep seeing people having issues with games, these people mostly having AMD cards with Project Cars being the most recent example and if I took 5 minute to research I can link you to other games that had many issues at launch for AMD users. Whether that's AMD's fault or Nvidia being a dick about making their features cripple AMD cards is another story. As a consumer I am not tied to any company but it simply worries me that most people complaining in the PC performance threads are AMD users not getting up to par performance with their competitive Nvidia cards.
AMD is certainly behind the ball in terms of releasing crossfire profiles.
One of the less talked about facts when it comes to AMD drivers, is that since almost all their cards share the same general architecture, they constantly get tweaked for new games and engines, giving increased performance on cards as old as the 7970/7950. When NVIDIA releases a new architecture, they pretty much stop tweaks and performance increases on their last architecture. So while people who bought a 7970 get extended life out of their product with new updates and tweaks, people who bought a Kepler card are now seeing AMD products that were half the price outpacing them in a lot of new and current games.
At this point, the 7970 GHz/280X is almost on par with the 780/780 Ti/Titan.
I can think of a lot of instances where both have dropped the ball in day 1 type situations. AMD certainly far more looking back 2 years or more through the ATI days. Lately though, they seem to be pretty much the same, with speedier fixes delivered by NVIDIA as a general rule of thumb.