I have enough money set aside to buy a GTX 980ti but I am concerned that it will be bottlenecked by my processor, in which case would the 980 be a better bet? I will be upgrading my monitor soon after.
Well, chances are in some scenarios you'll hit a slight level of pinching between the CPU and the GPU, will depend on what games you're playing and at what settings basically.
However in my opinion if you're at all considering one of the two, it should be the 980Ti. Comes with a higher TDP and bit lower clock speed ... But at the same time there's more memory + bandwidth, more ROP, TMU, Shaders ... All around significantly improved card over the base 980.
We need the monitor specs to better advise then imho. And he should save the money and do both at the same time since one of the parts so greatly affects the other.
Go for the 980 and put the rest of your money toward a 1440p (or other >1080p) monitor. Perhaps you could get some money out of selling the 770 if you're a bit short.
I use the i5 4670K and the 980ti and so far I'm enjoying it, games run great. If you already have the money for a 980ti just buy it and sell the 770 for money for a new monitor.
Hmmm the deciding factor is whether the GTX980 would last that long at 1440p. Games seem to be demanding more and more VRAM... Also do you have a good price/performance monitor recommendation?
Well if you've enough for a 980Ti, if you go for a 980 you'll have like, what, $160 spare. Then if you sell the 770 if you got $175 for it you'd have $325 altogether. There's quite a few 1440p panels for less than that, pretty sure some of those korean crossover ones are.