The Green500 List - November 2009
Listed below are the The Green500's Top 10 most energy-efficient supercomputers in the world as of November 2009.
| Green500 Rank | MFLOPS/W | Site* | Computer* | Total Power (kW) |
| 1 | 722.98 | Forschungszentrum Juelich (FZJ) | QPACE SFB TR Cluster, PowerXCell 8i, 3.2 GHz, 3D-Torus | 59.49 |
| 1 | 722.98 | Universitaet Regensburg | QPACE SFB TR Cluster, PowerXCell 8i, 3.2 GHz, 3D-Torus | 59.49 |
| 1 | 722.98 | Universitaet Wuppertal | QPACE SFB TR Cluster, PowerXCell 8i, 3.2 GHz, 3D-Torus | 59.49 |
| 4 | 458.33 | DOE/NNSA/LANL | BladeCenter QS22/LS21 Cluster, PowerXCell 8i 3.2 Ghz / Opteron DC 1.8 GHz, Infiniband | 276 |
| 4 | 458.33 | IBM Poughkeepsie Benchmarking Center | BladeCenter QS22/LS21 Cluster, PowerXCell 8i 3.2 Ghz / Opteron DC 1.8 GHz, Infiniband | 138 |
| 6 | 444.25 | DOE/NNSA/LANL | BladeCenter QS22/LS21 Cluster, PowerXCell 8i 3.2 Ghz / Opteron DC 1.8 GHz, Voltaire Infiniband | 2345.5 |
| 7 | 428.91 | National Astronomical Observatory of Japan | GRAPE-DR accelerator Cluster, Infiniband | 51.2 |
| 8 | 379.24 | National SuperComputer Center in Tianjin/NUDT | NUDT TH-1 Cluster, Xeon E5540/E5450, ATI Radeon HD 4870 2, Infiniband | 1484.8 |
| 9 | 378.77 | King Abdullah University of Science and Technology | Blue Gene/P Solution | 504 |
| 9 | 378.77 | EDF R&D | Blue Gene/P Solution | 252 |
| 9 | 378.77 | Ecole Polytechnique Federale de Lausanne | Blue Gene/P Solution | 126 |
| 9 | 378.77 | IBM - Rochester | Blue Gene/P Solution | 126 |
| 9 | 378.77 | IBM Thomas J. Watson Research Center | Blue Gene/P Solution | 126 |
| 9 | 378.77 | Max-Planck-Gesellschaft MPI/IPP | Blue Gene/P Solution | 126 |
* Performance data obtained from publicly available sources including TOP500
Submit your computer Have your own green supercomputer that should be on our rankings?
