Intel, Nvidia, Qualcomm, and Advanced Micro Devices debuted some of their latest chips at the 2020 CES tech trade show in Las Vegas this week. In general, they're faster and more power-efficient versions of existing technology, which should enable laptop makers to create even smaller devices that last longer on a charge. Some of the new chips, which have been in development for years, are already being used in devices coming out in the next few months, while others face a longer lead time.

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