Almost exactly one year after the Tegra 4, Nvidia introduces the much improved successor. Tegra K1 ("Logan") is not only supposed to be faster, but especially much more frugal compared to its not very successful predecessor. A special highlight is the new GPU based on the Kepler architecture.
http://www.notebookcheck.net/Nvidia-Tegra-K1-SoC-for-smartphones-and-tablets-announced.108450.0.html