Overclocking
The fact that no two GPUs are identical means that overclocking mileage will vary from one sample to the next, and ours isn't showing a great deal of headroom. Still, with no added voltage we were able to apply a stable boost clock of 1,969MHz and an effective memory clock of 11,408MHz.
The overclock is hardly worth the effort, mind. We see a performance increase of less than five per cent, so you may want to think twice before pushing extra voltage through the veins of such an expensive GPU.