NVIDIA Kal-El quad-core platform to include a stealthy power-saving fifth core

NVIDIA promised us back in May that its Kal-El Project quad-core system-on-a-chip platform for mobile devices would come as a "battery-friendly" solution, although without giving details at the time. The company has recently outlined the secret behind Kal-El's energy efficiency - it's a technology called Variable Symmetric Multiprocessing (vSMP), which is based on an extra fifth "companion core" designed to perform less demanding tasks in the background.

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