The most energy-efficient system on the Green500 is the MN-3, based on a new server from Preferred Networks. It achieved a record 21.1 gigaflops/watt during its 1.62 petaflops performance run. The system derives its superior power efficiency from the MN-Core chip, an accelerator optimized for matrix arithmetic. It is ranked number 393 in the TOP500 list.
In second position is the new NVIDIA Selene supercomputer, a DGX A100 SuperPOD powered by the new A100 GPUs. It occupies position seven on the TOP500.
In third position is the NA-1 system, a PEZY Computing/Exascaler system installed at NA Simulation in Japan. It achieved 18.4 gigaflops/watt and is at position 468 on the TOP500.
The number nine system on the Green500 is the top-performing Fugaku supercomputer, which delivered 14.67 gigaflops per watt. It is just behind Summit in power efficiency, which achieved 14.72 gigaflops/watt.