The most energy-efficient system and No. 1 on the Green500 is a new Fujitsu A64FX prototype installed at Fujitsu, Japan. It achieved 16.9 GFlops/Watt power-efficiency during its 2.0 Pflop/s Linpack performance run. It is listed on position 159 in the TOP500.
In second position is the NA-1 system, a PEZY Computing / Exascaler Inc. system which is currently being readied at PEZY Computing, Japan for a future installation at NA Simulation in Japan. It achieve 16.3 GFlops/Watt power efficiency. It is on position 420 in the TOP500.
The No 3 on the Green500 is AiMOS, a new IBM Power systems at the Rensselaer Polytechnic Institute Center for Computational Innovations (CCI), New York, USA. It achieved 15.8 GFlops/Watt and is listed at position 24 in the TOP500.
Listed below are the November 2019 The Green500's energy-efficient supercomputers ranked from 1 to 10. For more information about the sites and systems in the list, click on the links or view the complete list.
