Titan Cray XK47, The world's fastest supercomputer so far.

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Titan,  supercomputer at US government’s Oak Ridge National Laboratory has become the world’s fastest computer.
According to Top 500 supercomputer ranking, the Cray XK7, Titan achieved a sustained computing capability of 17.5 petaflops - or 17.5 million billion mathematical calculations per second – on Linpack's benchmark scale. 

The supercomputer cost $200 million and is powered by 18,688 Nvidia Tesla K20X GPUs and over 560,640 AMD processors. 

Photograph courtesy Charles Brooks, Oak Ridge National Laboratory



Sources
 National Geographic
 Anandtech




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