February 2008 Measured : 1-100

The "measured" list only ranks those machines for which the power of the system was measured.

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* Data source: http://www.top500.org

Green500 Rank MFLOPS/W Site* Computer* Total Power (kW) TOP500 Rank*
1 357.23 Science and Technology Facilities Council - Daresbury Laboratory Blue Gene/P Solution 31.10 121
2 352.25 Max-Planck-Gesellschaft MPI/IPP Blue Gene/P Solution 62.20 40
3 346.95 IBM - Rochester Blue Gene/P Solution 124.40 24
4 336.21 Forschungszentrum Juelich (FZJ) Blue Gene/P Solution 497.60 2
5 310.93 Oak Ridge National Laboratory Blue Gene/P Solution 70.47 41
6 210.56 Harvard University eServer Blue Gene Solution 44.80 170
7 210.56 High Energy Accelerator Research Organization /KEK eServer Blue Gene Solution 44.80 171
8 210.56 IBM - Almaden Research Center eServer Blue Gene Solution 44.80 172
9 210.56 IBM Research eServer Blue Gene Solution 44.80 173
10 210.56 IBM Thomas J. Watson Research Center eServer Blue Gene Solution 44.80 174
11 210.56 Renaissance Computing Institute (RENCI) eServer Blue Gene Solution 44.80 175
12 210.56 University of Canterbury eServer Blue Gene Solution 44.80 176
13 208.31 Forschungszentrum Juelich (FZJ) eServer Blue Gene Solution 179.20 28
14 208.31 Computational Biology Research Center, AIST eServer Blue Gene Solution 89.60 52
15 208.31 EDF R&D; eServer Blue Gene Solution 89.60 53
16 208.31 Ecole Polytechnique Federale de Lausanne eServer Blue Gene Solution 89.60 54
17 208.31 High Energy Accelerator Research Organization /KEK eServer Blue Gene Solution 89.60 55
18 208.31 High Energy Accelerator Research Organization /KEK eServer Blue Gene Solution 89.60 56
19 208.31 IBM Rochester, On Demand Deep Computing Center eServer Blue Gene Solution 89.60 57
20 208.31 Indian Institute of Science eServer Blue Gene Solution 89.60 58
21 205.27 DOE/NNSA/LLNL eServer Blue Gene Solution 2329.60 1
22 205.06 UCSD/San Diego Supercomputer Center eServer Blue Gene Solution 67.20 93
23 204.24 ASTRON/University Groningen eServer Blue Gene Solution 134.40 37
24 203.77 Stony Brook/BNL, New York Center for Computational Sciences eServer Blue Gene Solution 403.20 10
25 203.77 Rensselaer Polytechnic Institute, Computational Center for Nanotechnology Innovations eServer Blue Gene Solution 358.40 12
26 203.77 IBM Thomas J. Watson Research Center eServer Blue Gene Solution 448.00 8
27 177.06 NCSA PowerEdge 1955, 2.33 GHz, Infiniband 354.00 14
28 157.27 SGI SGI Altix ICE 8200, 3.0 GHz 123.10 50
29 155.71 Manufacturing Company (I) SGI Altix ICE 8200, 3.0 GHz 61.50 167
30 154.93 Tokyo University - Institute for Cosmic Ray Research SGI Altix ICE 8200, quad core 2.33 GHz 46.00 360
31 150.45 Near East University BladeCenter HS21 Cluster, Xeon quad core 2.33 GHz, Infiniband 51.44 308
32 150.45 Online Gaming (D) BladeCenter HS21 Cluster, Xeon quad core 2.33 GHz, GigEthernet, Windows 51.44 309
33 150.45 Qualcomm BladeCenter HS21 Cluster, Xeon quad core 2.33 GHz, GigEthernet 51.44 310
34 148.92 Naval Research Laboratory (NRL) SGI Altix ICE 8200, 3.0 GHz 97.50 82
35 148.11 SGI/New Mexico Computing Applications Center (NMCAC) SGI Altix ICE 8200, Xeon quad core 3.0 GHz 856.80 3
36 141.35 NASA/Ames Research Center/NAS SGI Altix ICE 8200, 2.66 GHz 230.07 34
37 139.68 Michigan State University SGI Altix XE 1300 Cluster Solutions, 2.33GHZ, Infiniband 53.10 324
38 138.83 Idaho National Laboratory SGI Altix ICE 8200, 2.66 GHz 123.10 64
39 137.51 Stanford University/Biomedical Computational Facility PowerEdge 1950, 2.33 GHz, Infiniband 113.23 73
40 129.60 National Taiwan University BladeCenter HS21 Cluster, Xeon quad core 2.66 GHz, Infiniband, Windows 47.77 239
41 127.82 Siberian National University BladeCenter HS21 Cluster, Xeon quad core 2.33 GHz, Infiniband 72.66 183
42 127.55 Audi AG Cluster Platform 3000 BL460c, Xeon 51xx 3.0GHz, Infiniband 86.70 123
43 125.41 NCSA PowerEdge 1955, 2.66 GHz, Infiniband 133.00 66
44 117.77 Pacific Northwest National Laboratory spray cooled xSeries x3550 Cluster Xeon quad core, 2.333 GHz, GigEthernet 78.85 186
45 107.61 Fraunhofer ITWM PowerEdge 1950, 2.33 GHz, Infiniband 75.62 244
46 104.25 Financial Institution (U1) BladeCenter HS21 Cluster, Xeon quad core 2.66 GHz, GigEthernet 76.10 270
47 104.25 Financial Institution (U1) BladeCenter HS21 Cluster, Xeon quad core 2.66 GHz, GigEthernet 75.63 301
48 104.25 Financial Institution (U1) BladeCenter HS21 Cluster, Xeon quad core 2.66 GHz, GigEthernet 75.63 302
49 104.25 Digital Media Company (G) BladeCenter HS21 Cluster, Xeon quad core 2.66 GHz, GigEthernet 69.60 339
50 104.25 Digital Media Company (G) BladeCenter HS21 Cluster, Xeon quad core 2.66 GHz, GigEthernet 69.60 340
51 104.25 Financial Institution (P) BladeCenter HS21 Cluster, Xeon quad core 2.33 GHz, GigEthernet 69.60 341
52 104.25 Banking B xSeries x3550 Cluster Xeon quad core, 2.333 GHz, GigEthernet 68.67 355
53 104.25 Banking B xSeries x3550 Cluster Xeon quad core, 2.333 GHz, GigEthernet 68.67 356
54 104.25 Semiconductor Company (C) xSeries x3550 Cluster Xeon quad core, 2.333 GHz, GigEthernet 68.67 357
55 104.25 Semiconductor Company (C) xSeries x3550 Cluster Xeon quad core, 2.333 GHz, GigEthernet 68.67 358
56 104.25 Bear Stearns BladeCenter HS21 Cluster, Xeon quad core 2.33 GHz, GigEthernet 68.21 363
57 104.25 Bear Stearns BladeCenter HS21 Cluster, Xeon quad core 2.33 GHz, GigEthernet 68.21 364
58 104.25 MTU Aero Engines xSeries x3550 Cluster Xeon quad core 2.33 GHz, Myrinet 59.39 453
59 104.25 Research xSeries x3550 Cluster Xeon quad core, 2.333 GHz, GigEthernet 58.93 458
60 104.25 Research xSeries x3550 Cluster Xeon quad core, 2.333 GHz, GigEthernet 58.46 480
61 103.32 Financial DCCoD (A) xSeries x3550 Cluster Xeon, 3 GHz, Infiniband 79.24 240
62 103.32 Financial DCCoD (A) xSeries x3550 Cluster Xeon, 3 GHz, Infiniband 78.86 243
63 102.64 Research xSeries x3550 Cluster Xeon quad core, 2.333 GHz, GigEthernet 90.48 185
64 98.95 Industrial Company BladeCenter HS21 Cluster, Xeon dual core 3.0 GHz, Infiniband 64.08 430
65 98.95 University of Warwick BladeCenter HS21 Cluster, Xeon dual core 3.0 GHz, Infiniband 91.54 195
66 98.95 University of Kentucky BladeCenter HS21 Cluster, Xeon dual core 3.0 GHz, Infiniband 129.69 103
67 95.31 Financial Institution (P) BladeCenter HS21 Cluster, Xeon quad core 2.33 GHz, GigEthernet 97.44 184
68 93.38 Financial (V) xSeries x3550 Cluster Xeon quad core, 2.66 GHz, GigEthernet 93.24 213
69 93.38 Barcelona Supercomputing Center BladeCenter JS21 Cluster, PPC 970, 2.3 GHz, Myrinet 683.59 13
70 93.18 Purdue University BladeCenter JS21 Cluster, PPC 970, 2.5 GHz, Myrinet 80.69 319
71 90.01 Indiana University BladeCenter JS21 Cluster, PPC 970, 2.5 GHz, Myrinet 242.07 42
72 79.48 University of Reading BladeCenter JS21 Cluster, PPC 970, 2.3 GHz, Myrinet 239.55 51
73 76.22 UT SimCenter at Chattanooga PowerEdge 1950, 3 GHz, GigEthernet 101.09 312
74 75.24 Ufa State Aviation Technical University BladeCenter HS21 Cluster, Xeon quad core 2.33 GHz, Infiniband 123.42 181
75 73.86 NASA/Ames Research Center/NAS Altix 4700 1.6 GHz 163.45 111
76 73.46 Joint Supercomputer Center MVS-15000BM, eServer BladeCenter JS20 (PowerPC970 2.2 GHz), Myrinet 90.46 408
77 72.38 Japan Marine Science and Technology Altix 4700 1.6 GHz 201.62 81
78 66.18 Wright-Patterson Air Force Base/DoD ASC Altix 4700 1.6 GHz 777.29 21
79 65.01 Geoscience (F) xSeries x3550 Cluster Xeon, 3 GHz, GigEthernet 108.62 371
80 65.01 Digital Media xSeries x3550 Cluster Xeon, 3 GHz, GigEthernet 140.62 193
81 65.01 Software xSeries x3550 Cluster Xeon, 3 GHz, GigEthernet 136.15 208
82 63.89 Texas Instruments xSeries x3550 Cluster Xeon, 3 GHz, GigEthernet 149.92 166
83 62.71 Financial DCCoD (A) xSeries x3550 Cluster Xeon, 3 GHz, GigEthernet 158.10 153
84 62.49 Biotechnology xSeries x3550 Cluster Xeon quad core, 2.66 GHz, GigEthernet 120.74 318
85 61.40 Communications Company (P1) BladeCenter HS21 Cluster, Xeon dual core, 3 GHz, GigEthernet 103.52 428
86 61.40 Telefonica Servicios Moviles BladeCenter HS21 Cluster, Xeon dual core, 2.33 GHz, GigEthernet 103.52 429
87 61.40 Banking (G2) BladeCenter HS21 Cluster, Xeon dual core, 2.33 GHz, GigEthernet 115.10 370
88 61.40 Banking (M) BladeCenter HS21 Cluster, Xeon dual core, 2.33 GHz, GigEthernet 128.60 291
89 61.40 Banking (M) BladeCenter HS21 Cluster, Xeon dual core, 2.33 GHz, GigEthernet 128.60 292
90 61.40 Banking (M) BladeCenter HS21 Cluster, Xeon dual core, 2.33 GHz, GigEthernet 128.60 293
91 61.40 Banking (M) BladeCenter HS21 Cluster, Xeon dual core, 2.33 GHz, GigEthernet 128.60 294
92 61.40 Banking (M) BladeCenter HS21 Cluster, Xeon dual core, 2.33 GHz, GigEthernet 128.60 295
93 61.40 Banking (M) BladeCenter HS21 Cluster, Xeon dual core, 2.33 GHz, GigEthernet 128.60 296
94 61.40 Banking (M) BladeCenter HS21 Cluster, Xeon dual core, 2.33 GHz, GigEthernet 128.60 297
95 61.40 Banking (M) BladeCenter HS21 Cluster, Xeon dual core, 2.33 GHz, GigEthernet 128.60 298
96 61.40 Banking (M) BladeCenter HS21 Cluster, Xeon dual core, 2.33 GHz, GigEthernet 128.60 299
97 57.08 Leibniz Rechenzentrum Altix 4700 1.6 GHz 990.24 15
98 56.50 Sinopec ShengLI Oilfield Branch Company, Geophysical Research Institute BladeCenter HS21 Cluster, Xeon dual core, 2.33 GHz, GigEthernet 329.22 59
99 56.40 NOAA/Geophysical Fluid Dynamics Laboratory (GFDL) Altix 4700 1.6 GHz 106.65 492
100 55.68 Classified BladeCenter LS21, Opteron Dual Core 2.6 GHz, Infiniband 127.04 369

* Data source: http://www.top500.org