I had a Qosmio x75 with 16 gb ram and i7 4700mq CPU @ 2,40 ghz and nvidia gtx 770 with 3gb vram, it's very well functioning but for games I think some time in the near future i have to upgrade to a better video card like gtx 1070 or 1080 so I was wondered if it could be posible to make that replacement.