Nvidia ready to lauch its new Processors Tegra 3D and tegra 3. Both of them supports the built in 3d support for many upcoming devices and the tegra 3 is specifically targeted towards tablets.However The device currently in market(korean) is the Lg Optimus 2X which is powered by nvidia's Tegra 2 which is the first 1ghz dual core processor in mobile devices. Tegra 2 promises lowest power consumtion and highest processing. The phone supports a full hd video recording and a mobile dolby sound . Full Phone Specifications- Here
Here is a show off of Optimus 2x vs Iphone 4