https://youtu.be/1ECKR6kiP9g
Very good example that shows that the cpu actually play a small part in general gaming performance.
Perfect example that most of the money needs to go to the graphic card on a gaming rig.
A 100USD Pentium CPU vs an 8th Generation CPU i3, sure the pentium will bottle neck the 1050ti in occaisions but more fps.
Similarly a System with an i7 2700k (not oc) + 1080ti & ddr3 @ 1333mhz is faster than a System with an i7 8700k (not oc) + 1080 & ddr 4 @ 4000mhz