nothing really to upgrade then, as the gpu i still very good. that 515W PSU is probably junk, so I'd replace that with a quality model
I not sure whether to look at a new mobo, I can not overclock or even use the full potential of my CPU due to the fact that the motherboard can't handle it. My GPU is a low spec one, 2GB of V-RAM. I find it has a higher load and runs hotter when playing games. F1 2016 has my GPU on 99% load at all times.