I will be editing on Adobe premiere pro, and sometimes a little after effects. I have 32gb ram and i7 5820k. I will be editing in gopro and lumix g7 4k, and sometimes 1080p. As long as I can get smooth playback in premiere pro at 1/2 res, I'm happy. Would the gtx 960 suit my needs? Or would the gtx 970 be worth the extra money? I care more about playback in premiere than render times.