LAS VEGAS — It was expected, but still impressive. Nvidia unveiled its quad-core Tegra 4mobile processor at CES 2013, and many products with the next-generation chip are already planned. One of them was a the show: The 10.1-inch model in Vizio’s new Android tablets, and I got a little one-on-one time with it.

The sample I checked out was a prototype. The finishing wasn’t final, but the screen and software were pretty much final. The screen, by the way, is a 2,560 x 1,600 display, comparable with Google’s Nexus 10. The software is close to pure Android 4.1 “Jelly Bean,” mirroring Vizio’s approach with its Windows 8 machines: Getting rid of the bloatware.

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