What is Nvidia Tegra 2 T20 found in Acer Iconia Tab210?

I read the latest release of Acer about Acer Iconia TabA210. As I was looking at the specifications of the tablet, it has Nvidia Tegra 2 T20. What is the function in store for it in the tablet? Will it be good for gaming and video purposes? Will it be a faster processor from the other processor?
