LAS VEGAS--Who says you can't teach an old chipmaker new tricks? Not Nvidia. At CES, the company announced its own gaming device, Nvidia Shield, which will bear its brand name as well as its quad-core Tegra 4 processor.

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Project Shield is small -- smaller than a Wii U controller. Fittingly, it looks like a portable Xbox controller with a small flip-up screen. It's got analog joysticks, buttons, and controllers. Nvidia promises between 5 and 10 hours of gameplay on Shield.

Still a prototype, the final name and design could change before the product goes to market, as soon as in a few months, an Nvidia spokesperson said.

"It's pure Android," says Nvidia CEO Jen-Hsun Huang. There's nothing proprietary about it; all jacks are standard and the platform is open. It comes with a microSD card slot.

Shield can connect to the cloud to play Android games, TegraZone games, and PC games for PCs with compatible GeForce graphics cards. It also supports multiplayer mode.