The Green500 List - November 2010
Listed below are the The Green500's Top 10 most energy-efficient supercomputers in the world as of November 2010.
| Green500 Rank | MFLOPS/W | Site* | Computer* | Total Power (kW) |
| 1 | 1684.20 | IBM Thomas J. Watson Research Center | NNSA/SC Blue Gene/Q Prototype | 38.80 |
| 2+ | 1448.03 | National Astronomical Observatory of Japan | GRAPE-DR accelerator Cluster, Infiniband | 24.59 |
| 2 | 958.35 | GSIC Center, Tokyo Institute of Technology | HP ProLiant SL390s G7 Xeon 6C X5670, Nvidia GPU, Linux/Windows | 1243.80 |
| 4 | 933.06 | NCSA | Hybrid Cluster Core i3 2.93Ghz Dual Core, NVIDIA C2050, Infiniband | 36.00 |
| 5 | 828.67 | RIKEN Advanced Institute for Computational Science | K computer, SPARC64 VIIIfx 2.0GHz, Tofu interconnect | 57.96 |
| 6 | 773.38 | Universitaet Wuppertal | QPACE SFB TR Cluster, PowerXCell 8i, 3.2 GHz, 3D-Torus | 57.54 |
| 6 | 773.38 | Universitaet Regensburg | QPACE SFB TR Cluster, PowerXCell 8i, 3.2 GHz, 3D-Torus | 57.54 |
| 6 | 773.38 | Forschungszentrum Juelich (FZJ) | QPACE SFB TR Cluster, PowerXCell 8i, 3.2 GHz, 3D-Torus | 57.54 |
| 9 | 740.78 | Universitaet Frankfurt | Supermicro Cluster, QC Opteron 2.1 GHz, ATI Radeon GPU, Infiniband | 385.00 |
| 10 | 677.12 | Georgia Institute of Technology | HP ProLiant SL390s G7 Xeon 6C X5660 2.8Ghz, nVidia Fermi, Infiniband QDR | 94.40 |
* Performance data obtained from publicly available sources including TOP500
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