The Ten Greenest Computers

HPProLiantSL390sG7 Xeon 6C X5670, Nvidia GPU                             958

Tokyo Inst of Technology

Hybrid Cluster Core i3 2.9GHz dual core, Nvidia C2050,       Infiniband                                         NCSA                                              933

K computer, SPARC64lfx 2.0GHz Tofu interconnect                                                   RIKEN                                                                                                    828

QPACE SFB TR Cluster, PowerXCell 8i, 3.2 GHz, 3D-Torus                  773                Forschungszentrum Juelich

QPACE SFB TR Cluster, PowerXCell 8i, 3.2 GHz, 3D-Torus                  773

Regensburg University                                             

QPACE SFB TR Cluster, PowerXCell 8i, 3.2 GHz, 3D-Torus                  773             

University Wuppertal

Supermicro Cluster, QC Opteron 2.1 GHz, ATI Radeon GPU, Infiniband   740

Frankfurt University

HP ProLiant SL390s G7 Xeon 6C X5660 2.8Ghz, nVidia Fermi, Infiniband QDR    677            Georgia Tech

GOSAT Research Computation Facility, Nvidia    NIES                                                                         636

NB Figures represent MFLOPS/W