There's no getting away from it, this is the graphics card we've been waiting for since we first heard about Nvidia's Kepler GPU architecture. The GTX 780 Ti is simply the most powerful graphics card on the planet right now and the first to sport the real full-fat GK 110 graphics processor.When it unleashed the impressively efficient GK 104 chip, with the GTX 680 as the vanguard, we had our suspicions it wasn't the full fat Kepler chip Nvidia had been working on. And so when we heard about the Tesla K20 and K20X professional cards, with their massive GK 110 GPUs and frighteningly-fast floating point performance, inevitably we wanted one. But time, she passed, and there was no talk of the top Kepler chip ever making its way down into our gaming PCs. And we were sad.Luckily for us AMD pulled its finger out and delivered the HD 7970 GHz update and gave the GTX 680 a wee shoeing in the benchmarks. Nvidia had to hit back, and whether or not the GK 110 chip was ever meant to be dropped into a gaming card, it decided to bring its big guns to bear upon AMD's top graphics card.The GTX Titan then was Nvidia's shock-and-awe response to reclaim the single-GPU performance crown.