Overclocking
With little effort, and with no added voltage, we were able to increase the core to 1,140MHz and bump up the memory to an effective 7,300MHz. This isn't the highest we've seen on a GTX 780, however, and if you're really in it for overclocking's sake, you might want to cast your eye at KFA2's HOF.
There's a modest bump in performance, but then there's arguably no great need to overclock. We're only making the fastest card that little bit faster.