World's Fastest Super Computer: K Computer (Japan)
On 20 June 2011, the TOP500 Project Committee announced that K had set a LINPACK record with a performance of 8.162 petaflops, making it the fastest supercomputer in the world at the time; it achieved this performance with a computing efficiency ratio of 93.0%. The previous record holder was the Chinese National University of Defense Technology's Tianhe-1A, which performed at 2.507 petaflops. The TOP500 list is revised semiannually, and the rankings change frequently, indicating the speed at which computing power is increasing. In November 2011, RIKEN reported that K had become the first supercomputer to exceed 10 petaflops, achieving a LINPACK performance of 10.51 quadrillion computations per second with a computing efficiency ratio of 93.2%. K received top-ranking in all four performance benchmarks at the 2011 HPC Challenge Awards.
Conclusion : Computing speed is till increasing!! Don't worry, our human brain is 10x faster than this computer... 100 petaflops!!(App.)
Source : wikipedia