Originally posted by Shimshi
I agree with you that 4k is new and we are still in the process of creating GPU's that would smoothly run 4k.
4k is still quite new and won't be the standard for some time, couple of reasons not just the GPU load. Years off I mean about 10 years maybe even 5 at a push.
1440P on the other hand is wise choice it only half the resolution.
If you want some good framerate need quite a good set of GPUs to pull it off. Most games on high settings even at 1440p looking at 30fps, 4K even worse.
You can save so much money by building a 1080P machine which you get a decent display with it.
Can also build a 1440P machine at a push if you wanted with a display.
Every time you up the res you increase the load on the GPU simple way of explaining it, throw in frames per second you need to increase the power even more.
1080p at 30fps half the load of 60fps
1440p 30fps twice the load of 1080p 60fps
4K at 30fps x4 the load of 1080p 60fps
4K at 60fps twice the load of 4K 30fps
Some games work quite well on 1440P with a good framerate in SLI or cross fire.
I would go with a 970 SLI setup unless you picked up the 980s which not sure are on offer.