June 2020

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.

Green500 Data

Rank TOP500 Rank System Cores Rmax (TFlop/s) Power (kW) Power Efficiency (GFlops/watts)
1 393 MN-3 - MN-Core Server, Xeon 8260M 24C 2.4GHz, MN-Core, RoCEv2/MN-Core DirectConnect, Preferred Networks
Preferred Networks
2,080 1,621.1 77 21.108
2 7 Selene - DGX A100 SuperPOD, AMD EPYC 7742 64C 2.25GHz, NVIDIA A100, Mellanox HDR Infiniband, Nvidia
NVIDIA Corporation
United States
277,760 27,580.0 1,344 20.518
3 468 NA-1 - ZettaScaler-2.2, Xeon D-1571 16C 1.3GHz, Infiniband EDR, PEZY-SC2 700Mhz, PEZY Computing / Exascaler Inc.
PEZY Computing K.K.
1,271,040 1,303.2 80 18.433
4 204 A64FX prototype - Fujitsu A64FX, Fujitsu A64FX 48C 2GHz, Tofu interconnect D, Fujitsu
Fujitsu Numazu Plant
36,864 1,999.5 118 16.876
5 26 AiMOS - IBM Power System AC922, IBM POWER9 20C 3.45GHz, NVIDIA Volta GV100, Dual-rail Mellanox EDR Infiniband, IBM
Rensselaer Polytechnic Institute Center for Computational Innovations (CCI)
United States
130,000 8,339.0 512 16.285
6 6 HPC5 - PowerEdge C4140, Xeon Gold 6252 24C 2.1GHz, NVIDIA Tesla V100, Mellanox HDR Infiniband, Dell EMC
Eni S.p.A.
669,760 35,450.0 2,252 15.740
7 421 Satori - IBM Power System AC922, IBM POWER9 20C 2.4GHz, Infiniband EDR, NVIDIA Tesla V100 SXM2, IBM
United States
23,040 1,464.0 94 15.574
8 2 Summit - IBM Power System AC922, IBM POWER9 22C 3.07GHz, NVIDIA Volta GV100, Dual-rail Mellanox EDR Infiniband, IBM
DOE/SC/Oak Ridge National Laboratory
United States
2,414,592 148,600.0 10,096 14.719
9 1 Supercomputer Fugaku - Supercomputer Fugaku, A64FX 48C 2.2GHz, Tofu interconnect D, Fujitsu
RIKEN Center for Computational Science
7,299,072 415,530.0 28,335 14.665
10 9 Marconi-100 - IBM Power System AC922, IBM POWER9 16C 3GHz, Nvidia Volta V100, Dual-rail Mellanox EDR Infiniband, IBM
347,776 21,640.0 1,476 14.661