So thanks both RKRiley and Glenwing. Looks like GSync is going to have to be the sacrifice on this, although given the Gold Phoenix I currently have doesn't have it either I guess i'm not necessarily losing out....
In which case - what are the best options for 4K with Displayport, HDMI and USBC (with charging) that will have decent gaming capability, ie 4k @60hz which is what I currently have.
Thanks guys (y)