The June 02012 TOP500.org list has the Sequoia supercomputer ranked number one at 16.32 petaflops.
16.32 petaflops Jun 02012 (1.55x in 0.5 year; 55% increase)
10.51 petaflops Nov 02011 (10.2x in 3.5 years; 942% increase)
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1.026 petaflops Jun 02008 ( 7.5x in 3 years; 650% increase)
0.1368 petaflops Jun 02005 (i.e. 136.8 teraflops)
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teraflops 01996; gigaflops 01985; megaflops 01964
18 June 02012 (Monday):
Intel on Monday introduced a high-performance chip family called Xeon Phi, which provides a stepping stone for the company to reach the milestone of creating an exaflop computer by 2018.
The computing roadmap predicts exascale computing by 02018-02020. Intel’s Xeon Phi announcement makes it appear that the current computing roadmap will be accurate. It is possible we will have exascale computing before the end of the current decade.