They waited for "one last thing" at Nvidia's press conference, but it never came.

Instead, the graphics-chip maker devoted its entire press event at the International CES Sunday night to technologies that will power the car of tomorrow.

At a show where smartphones, tablets and other portable gadgets make many of the headlines, Nvidia mentioned none of those things in its 90 minute presentation here, despite making chips that target them all. Not even its own Shield gaming device got a look-in.

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