Nvidia's upcoming flagship graphics card, dubbed the Titan X, has long been rumoured. Today they however they finally all but confirmed its existence with the above tweet.
Sadly we can't tell an awful lot from this image except to say that based on the cooler design Titan X is almost certain to be a long single-GPU card. However during the live GDC reveal Nvidia CEO Jen-Hsun Huang did mention that the card was specced with a 12GB frame buffer and 8bn transistor GPU, placing it in a different league to what has come before.
The Titan X is expected to be the first full-fat variant of Maxwell AKA 'Big Maxwell' AKA GM200, just as the GTX Titan was the first of its generation to make use of 'Big Kepler' GK110. That aside, precise specifications and performance are unknown other than 'better than the GTX 980'.
It's not clear what precipitated this Nvidia's reveal. It's possible that they have another major release announcement in the next few days, or that they've caught wind of an AMD product launch and wish to preempt their competitors. Either way, we're looking forward to seeing more of this beast in the coming months.
Source: Nvidia GeForce Twitter Feed