Nvidia Shield Tablet X1 Spotted At GFXBench With Tegra X1, 3GB RAM And Android 6.0 Marshmallow The hardware specs of the Nvidia Shield Tablet K1's successor have been spotted at GFXBench. The upcoming Nvidia Shield Tablet X1 will sport the Tegra X1 and will run Android 6.0 Marshmallow. by Vincent Lanaria