If OCed CPU does not go above 120 Watts then 4 pins are OK.
the additional 4 pins (8 Pins) were added to ork with CPUs > 120 watts.
It is NOT the wirig, it is the number of contact, with 8 contacts the current is spred out and reduces the IsqR loss per contact and also the Heat dissipated at the contact.
at 120 watts, The current per connector is about 5 Amps for 4 pin connector, for 8 pins that is only 2.5Amps per connector.
Bottom line, your CPU is listed as 95 watts, OC, you would not want to push over 120 watts anyway - so 4 pin should be fine.