Crysis 3
Crysis 3 is a beautiful-looking game that continues to tax high-end systems. We've FRAPS'd a 30-second section near the start of the game, with lashing rain, numerous reflections and full DX11 pomp on show.
Overclocked memory might have helped eke out a bit more performance in Crysis 3, but the GTX 780 HOF is quick nonetheless. It has the beating of GTX Titan in this game.