TOP500 lists the world's fastest supercomputers

TOP500 Supercomputers: #3 - Roadrunner

Number three on the list is the Roadrunner, another supercomputer that is owned by the U.S. government. Roadrunner, located at the Los Alamos National Laboratory, is a BladeCenter cluster running Opteron DC processors at 1.8 GHz. It is made up of 122,400 cores.

Photo courtesy of LeRoy Sanchez, Los Alamos National Laboratory and carries the following disclaimer:
Unless otherwise indicated, this information has been authored by an employee or employees of the University of California, operator of the Los Alamos National Laboratory under Contract No. W-7405-ENG-36 with the U.S. Department of Energy. The U.S. Government has rights to use, reproduce, and distribute this information. The public may copy and use this information without charge, provided that this Notice and any statement of authorship are reproduced on all copies. Neither the Government nor the University makes any warranty, express or implied, or assumes any liability or responsibility for the use of this information.

More on this topic: Read Selena Frye's TechRepublic post Which Linux-powered behemoth is the world's top supercomputer? and Zack Whittaker's ZDNet post US still the supercomputing superpower; Academia has major stake.