mark2603 :
There is no way to game in 4k with this laptop at least not the titles you are looking at, however you can always lower the resolution
a desktop system with a GTX 980 will have a hard time rendering in 4k let alone a 2GB 860M
so he has to give up for 4k or increase the budget,
but on this budget this is it ,that 860 cannot handle 4k properly