The answer is yes and no. Btw, what's your old gpu? You can use the second gpu with games supporting(as I know there's only ashes of the singularity) DirectX 12's Multi-Explicit Adapter. It works well if the two cards don't have a very huge diffrence in performance(e.g.: gtx 1080 & 960 is the maximum acceptable difference), if the gap is too big, it will cause frame tearing.