This guide will show you how to overclock your reference Nvidia GTX 780 but nobody cares about nvidia dude
For mining, yes, AMD wins the battle. But for many people that bought their card for gaming before they knew about mining, this could be a decent starting point for them. I would have gone with 2 280x's if I would have been informed sooner.
I also wrote this guide as a way to get out of the newbie jail.