Man, a radiator is little more than a water reservoir, if you are running hotter than what spec is then you need to do a systematic elimination of possible faults:
coolant level?, Serpt. belt, water pump, themostat? water channels plugged? engine temp sensor, coolant temp sensor, fans working at right temp? aux fan,if equipt? air flow in front of radiator blocked by accesories?
A "bad" radiator is one that leaks, small leaks can be fixed Plugged radiators can be flushed.