The next big version of Windows got a lackluster reception when it first landed on a tablet. It looked and worked great, yeah, but was knocked for a little clunkiness. Now, it's running on superfast phone guts—and it will be great.

We stopped by Nvidia's CES fortress, where a prototype tablet was running Windows 8 on the blazing Tegra 3 mobile processor. But this ARM processor is way more than mobile—as you can see here, it's capable of running a full desktop operating system (and HD video!) smoothly. But more importantly, because it's using a majorly efficient brain, a tablet like this—meant to represent a standard, generic model—will get killer battery life (at least as much as a comparable Android slate). It'll run cool. It'll run without that much maligned fan. And it'll run fast.

This is the future of computing, and although it's stuck behind a glass case for the moment, it's starting to feel very real.

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