Nvidia has outed its next-gen Tegra 4 mobile CPU at CES. As expected, the chip packs 72 GPU cores, offering a 6x bump on the Tegra 3′s graphics processing performance — to make the most of higher resolution displays — along with the first quad-core ARM Cortex-A15, to boost web browsing speed by 2.6x and deliver improved app performance. Also on board: LTE support.