a) finding out what's really possible vs what it says on the box can be fun b) buying a lower cost model and getting similar performance to what you get from a

a) finding out what's really possible vs what it says on the box can be fun b) buying a lower cost model and getting similar performance to what you get from a higher cost model out of the box is a good value c) sometimes you really need more performance, so nothing else will do d) modern overclocking is more about tuning voltages lower, but not too low, so you generate less heat and can clock a bit higher, which can end up saving energy.