Intel presents three new Atom processors (Z2580, Z2560, and Z2520) for tablets and performance smartphones at MWC 2013. In comparison to previous-generation Medfield, Intel claims the new SoC designs to have 2x the compute performance, 3x the graphics performance, and Android-optimized power management.
http://www.notebookcheck.net/Intel-presents-Atom-Clover-Trail-processors-for-tablets-and-smartphones.88940.0.html