The 7500 is but a 4c/4t design, perhaps not quite enough CPU for most of the newer gaming titles, most of which do much better with 6-8 threads, minimum...; most look to an OC'd 7700K and preferably 8700K to sustain 144 FPS frame rates for 144 Hz monitors..
Unsure if you have a 1060 or a 1080, given the discrep between your title and text within...; in any event, a 450 watt PSU *might* do, but,, given so many 600-650 watt PSUs avail for $50, why risk it?