Jen-Hsun Huang is quite the character. During Epic's State of Unreal Engine presentation with Tim Sweeney, the Nvidia CEO hopped onstage to answer Sweeney's call for more powerful GPUs. Hidden under his arm, in a balled-up jacket, was Nvidia's next uber graphics card, the Titan X.
We didn't hear much about the Titan X from Huang. All we know is that the card has a 12GB frame buffer and a GPU with eight billion transistors. We also saw an impressive graphics demo running on the new hardware. I assume Huang wants to save the nitty-gritty details for Nvidia's own developer conference in a couple of weeks.
For perspective, the GM204 in the GTX 980 is the biggest Maxwell yet released. That GPU has 5.2 billion transistors and usually ships with 4GB of RAM. Between the increased transistor count and the copious amount of memory, the Titan X should be a beast of a card. If any further details surface, we'll add them to this post.