I have 4 kids so it’s hard to build up a rig. I have acquired an old Alienware 17 and was thinking of updating the GPU. Question is should I snag an used 870m or spend $50 more and get a 970m? Screen resolution is 1600x900. Not trying to get any insane FPS. Something consistent is all I need for now. I will build something high end late next year and am just trying to get 18 months of gameplay.