Should I upgrade from a 780?

[Tropic Thunda]

I have a pretty good rig already, but I'm just debating/wondering if upgrading to a 980 or the big brother to the 980 from my current 780 is worth it?

 

[Gam3r01]

The 780 is powerful as is, if you feel you need more performance you can always upgrade. I would see no need for it.
Compare here: https://www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_980/26.html

 

[clutchc]

Probably: http://www.anandtech.com/bench/product/1351?vs=1036