Save the 50$, for the gtx 1050ti both cps are more then enough, you wont see any performance difference since the gpu will be the limited factor always. Only with higher end gpus you might see a difference and even then it depends on the game and would probably only 5 fps anyway. Save the bucks and get the i5 7400, its a very good processor
Maybe put the 50$ towards a better gpu? Like a rx470/480 or gtx 1060? Would give better performance than a gtx 1050 ti.