In the top ten green supercomputers in the world - as measured by the Green500 List, which compiles a rundown of the most energy-efficient and environmentally responsible systems on the planet - the only petaflop installations are those which use NVIDIA Tesla GPUs, the company says.
Wu-chen Feng, founder of the Green500 organisation, says: "The rise of GPU supercomputers on the Green500 signifies that heterogeneous systems, built with both GPUs and CPUs, deliver the highest performance and unprecedented energy efficiency."
The fastest supercomputer in the world, Tianhe-1A at the National Supercomputer Center in Tianjin, ranks tenth on the planet in terms of its energy efficiency.
Tokyo Institute of Technology's Tsubame 2.0, another petaflop system powered by NVIDIA GPUs, ranks second overall for its eco-friendliness.
