Tegra 4 is the latest processor from NVIDIA, that’s announced at CES 2013 event held in last January. It’s the successor of Tegra 3, which also uses 4+1 core. However, there is no device powered by Tegra 4 has been launched to market so far.
The latest news said that a device with Tegra 4 from HP named Slatebook 10 X2 will launch soon. Not only HP, Toshiba is also preparing a Tegra 4-powered tablet with code AT10LE-A. According to its code, the tablet will have a 10.1-inch display
Quoted from Techblog, Tegra 4 processor used on the Toshiba slate has a clock speed of 1.8 GHz. AT10LE-A also features a microSD slot, a mini HDMI port, and stereo speaker. The device running on Android 4.2.1 Jelly Bean also provides docking keyboard as an optional accessory.