Tianhe-1A: world's fastest computer

A new Chinese supercomputer, the Tianhe-1A, runs at 2.507 petaflops making it by far the fastest in the world. Note this is operational performance, not peak performance, and is a far better measurement of the power and speed of the computer.
A petaflop is a measure of a computer’s processing speed. That is a thousand trillion floating point operations (calculations or FLOPS) a second. It uses 14,000 Intel CPUs and 7,000 NVidia GPUs.
In June, 2008, IBM’s Roadrunner was the first to break ‘the petaflop barrier.’ In November 2008, when the annual rankings of the Top 500 supercomputers were released, there were two computers to do so. Now the Tianhe-1A is well ahead of the field.
TechRadar.com reports the Intel and Nvidia-powered supercomputer will be used to run simulations in astrophysics, as well as maths-intensive projects in medical imaging, oil exploration and weather forecasting.