I currently have a GTX 980 in my PC. But after seeing all these videos about the GTX 1070 and 1080 I am concerned about my 980 not being futureproofed for next year. I seek to play games on ultra settings at 1080p or 4k over the next year. I have an i7 6700k @ 4.0 GHz and 16GB of RAM. Thank you in advance for any answers.