Nvidia Tegra "Grey" system-on-chip features built-in 3G and 4G/LTE communication technologies, the developer pins a lot of hopes on it as it should help it to penetrate the market of mass smartphones (that can be sold at a discount price), which will boost its market share considerably. Tegra "Wayne" is the next-generation multi-core application processor, which is presumably based on ARM Cortex-A15 general-purpose cores as well as a new GeForce-class graphics engine.
Nvidia expects many makers of smartphones and tablets to adopt Tegra “Grey” system-on-chip and “Wayne” application processor. Both products are expected to be made using 28nm process technology.
SOURCE - Xbitlabs
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