BioShock Infinite
BioShock is fantastically playable and looks great on the PC. We benchmark a 45-second section near the start with all available eye-candy turned on.
BioShock runs nicely on any card in this lineup when judged at 1440p. Those that want their 4K cherry, with copious cream on top, would do well with the Titan X SLI.
Fast and smooth at 4K, but then so is the sub-£500 Radeon R9 295X2.