The Titan, a Cray XK7 system installed at the Oak Ridge National Laboratory (ORNL) in Tennessee, has been named the fastest supercomputer in the world in the 40th edition of the twice-annual Top500 List.

According to a Top500 news release, the Titan achieved 17.59 Petaflop/s (quadrillions of calculations per second) on the Linpack benchmark. The computer runs 560,640 processors, including 261,632 Nvidia K20x accelerator cores.

Titan replaced Oak Ridge's XT5 Jaguar, which ranked as the world's fastest computer in November 2009 and June 2010 before it was bested by the Chinese Tianhe-1A system at the National Supercomputer Center in Tianjin two years ago.


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