| Rank | Site | Computer | Cores | Year | Rmax | Rpeak | | 101 | NCAR (National Center for Atmospheric Research) United States | eServer Blue Gene Solution IBM | 2048 | 2005 | 4.71 | 5.73 |
| 102 | NIWS Co, Ltd Japan | eServer Blue Gene Solution IBM | 2048 | 2005 | 4.71 | 5.73 |
| 103 | Princeton University United States | Orangena - eServer Blue Gene Solution IBM | 2048 | 2005 | 4.71 | 5.73 |
| 104 | Renaissance Computing Institute (RENCI) United States | eServer Blue Gene Solution IBM | 2048 | 2006 | 4.71 | 5.73 |
| 105 | UCSD/San Diego Supercomputer Center United States | Intimidata - eServer Blue Gene Solution IBM | 2048 | 2005 | 4.71 | 5.73 |
| 106 | University of Edinburgh United Kingdom | eServer Blue Gene Solution IBM | 2048 | 2005 | 4.71 | 5.73 |
| 107 | Sun Trust Florida United States | Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz, GigEthernet Hewlett-Packard | 1344 | 2006 | 4.64 | 8.60 |
| 108 | Government Classified United States | Cluster Platform 3000 DL360G4 Xeon 3.4 GHz, Myrinet Hewlett-Packard | 1000 | 2005 | 4.62 | 6.80 |
| 109 | Government Classified United States | Cluster Platform 3000 DL360G4 Xeon 3.4 GHz, Myrinet Hewlett-Packard | 1000 | 2005 | 4.62 | 6.80 |
| 110 | Hokkaido University Japan | SR11000-K1/80 Hitachi | 40 | 2006 | 4.60 | 5.38 |
| 111 | Wells Fargo United States | Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz, GigEthernet Hewlett-Packard | 1280 | 2006 | 4.58 | 8.19 |
| 112 | Wells Fargo United States | Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz, GigEthernet Hewlett-Packard | 1280 | 2006 | 4.58 | 8.19 |
| 113 | Max-Planck-Gesellschaft MPI/IPP Germany | eServer pSeries p5 575 1.9 GHz IBM | 688 | 2005 | 4.56 | 5.23 |
| 114 | University of Illinois United States | Turing - XServe G5 2GHz, Myrinet Self-made | 1024 | 2005 | 4.56 | 8.19 |
| 115 | Kyoto University Japan | PRIMEPOWER HPC2500 (1.56 GHz) Fujitsu | 1472 | 2004 | 4.55 | 9.19 |
| 116 | Pittsburgh Supercomputing Center United States | AlphaServer SC45, 1 GHz Hewlett-Packard | 3016 | 2001 | 4.46 | 6.03 |
| 117 | US Army HPC Research Center at NCS United States | Cray XT3, 2.4 GHz Cray Inc. | 1152 | 2006 | 4.44 | 5.53 |
| 118 | National Centers for Environmental Prediction United States | eServer pSeries 655 (1.7 GHz Power4+) IBM | 1152 | 2004 | 4.38 | 7.83 |
| 119 | National Centers for Environmental Prediction United States | eServer pSeries 655 (1.7 GHz Power4+) IBM | 1152 | 2004 | 4.38 | 7.83 |
| 120 | Research USA United States | BladeCenter LS20, Opteron 2.0 GHz Dual core, GigEthernet IBM | 2016 | 2006 | 4.38 | 8.06 |
| 121 | UT SimCenter at Chattanooga United States | Slide Rule - PowerEdge 1850/1855 3.2 GHz GigEthernet Dell | 1010 | 2005 | 4.34 | 6.46 |
| 122 | Total SA France | Houat - eServer pSeries p5 575 1.5 GHz, Myrinet IBM | 1024 | 2005 | 4.31 | 6.14 |
| 123 | Caltech/JPL United States | Cosmos - PowerEdge 1750, P4 Xeon 3.2 GHz, Myrinet Dell | 1024 | 2004 | 4.30 | 6.55 |
| 124 | Chinese Academy of Science China | DeepComp 6800, Itanium2 1.3 GHz, QsNet lenovo | 1024 | 2003 | 4.19 | 5.32 |
| 125 | NCAR (National Center for Atmospheric Research) United States | pSeries 690 Turbo 1.3 GHz IBM | 1600 | 2003 | 4.18 | 8.32 |
| 126 | Texas Advanced Computing Center/Univ. of Texas United States | lonestar - PowerEdge 1750, Pentium4 Xeon 3.2/3.06 GHz, Myrinet Dell | 1024 | 2004 | 4.15 | 6.34 |
| 127 | University of Reading United Kingdom | JS20 Cluster, PPC 970, 2.2 GHz, Myrinet IBM | 736 | 2006 | 4.15 | 6.48 |
| 128 | Walt Disney Feature Animation United States | The Hive - Cluster Platform 3000 DL360G3 Xeon 3.06 GHz, Verari BladeRack 3.4 GHz, GigEthernet Hewlett-Packard | 1110 | 2005 | 4.13 | 6.94 |
| 129 | Retailer (C) United States | Blade Cluster BL-20P, Pentium4 Xeon 3.6 GHz, GigEthernet Hewlett-Packard | 1024 | 2006 | 4.12 | 7.37 |
| 130 | NCSA United States | Lincoln - PowerEdge 1855, 3.2 GHz, Infiniband, Windows Dell | 900 | 2006 | 4.11 | 5.76 |
| 131 | DOE/Bettis Atomic Power Laboratory United States | Atipa Cluster, Opteron, Myrinet Atipa Technology | 1090 | 2005 | 4.04 | 5.23 |
| 132 | DOE/Knolls Atomic Power Laboratory United States | Atipa Cluster, Opteron, Myrinet Atipa Technology | 1090 | 2005 | 4.04 | 5.23 |
| 133 | NCAR (National Center for Atmospheric Research) United States | eServer pSeries p5 575 1.9 GHz IBM | 608 | 2005 | 4.03 | 4.62 |
| 134 | Kaiser United States | Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz, GigEthernet Hewlett-Packard | 1125 | 2006 | 4.02 | 7.20 |
| 135 | Kaiser United States | Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz, GigEthernet Hewlett-Packard | 1125 | 2006 | 4.02 | 7.20 |
| 136 | Telecommunication Company United States | Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz, GigEthernet Hewlett-Packard | 1152 | 2006 | 3.98 | 7.37 |
| 137 | Commissariat a l'Energie Atomique (CEA) France | AlphaServer SC45, 1 GHz Hewlett-Packard | 2560 | 2001 | 3.98 | 5.12 |
| 138 | Classified China | HP Cluster Platform 4000 DL145 Cluster Hewlett-Packard | 1044 | 2006 | 3.96 | 5.01 |
| 139 | Hewlett-Packard United States | Cluster Platform 4000 DL145 Opteron 2.6 GHz Infiniband Hewlett-Packard | 1024 | 2005 | 3.95 | 5.32 |
| 140 | Vanderbilt University United States | JS20 Cluster, PPC 970, 2.2 GHz, Myrinet IBM | 660 | 2006 | 3.84 | 5.81 |
| 141 | Semiconductor Company (L) India | Cluster Platform 4000 DL145 Opteron 2.4 GHz GigEthernet Hewlett-Packard | 1400 | 2006 | 3.83 | 6.72 |
| 142 | Lawrence Livermore National Laboratory United States | eServer pSeries 655 (1.5 GHz Power4+) IBM | 1024 | 2004 | 3.81 | 6.14 |
| 143 | Lawrence Livermore National Laboratory United States | eServer pSeries 655 (1.5 GHz Power4+) IBM | 1024 | 2004 | 3.81 | 6.14 |
| 144 | US Army HPC Research Center at NCS United States | Cray X1E Cray Inc. | 252 | 2005 | 3.78 | 4.56 |
| 145 | Bank United Kingdom | BladeCenter HS20 Xeon 3.06 GHz, Gig-Ethernet IBM | 3200 | 2004 | 3.76 | 19.58 |
| 146 | Westgrid Canada | glacier - BladeCenter Xeon 3.06 GHz, Gig-Ethernet IBM | 1680 | 2005 | 3.76 | 10.28 |
| 147 | Petroleum Company (G) Saudia Arabia | BladeCenter HS20 Cluster, Xeon 3.2 GHz, GigEthernet IBM | 1536 | 2004 | 3.76 | 9.83 |
| 148 | Semiconductor Company (D) Israel | BladeCenter HS20 Cluster, Xeon EM64T 3.2 GHz, GigEthernet IBM | 1464 | 2006 | 3.76 | 9.37 |
| 149 | Financial Services (N) United States | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz - Gig-Ethernet IBM | 1300 | 2006 | 3.76 | 9.36 |
| 150 | Credit Suisse/First Boston United Kingdom | BladeCenter HS20 Xeon 3.06 GHz, Gig-Ethernet IBM | 1500 | 2004 | 3.76 | 9.18 |
| 151 | Geoscience (G) India | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz - Gig-Ethernet IBM | 1024 | 2006 | 3.76 | 7.37 |
| 152 | Geoscience H China | BladeCenter HS20 Cluster, Xeon EM64T 3.4 GHz, Gig-Ethernet IBM | 1064 | 2006 | 3.76 | 7.24 |
| 153 | Semiconductor Company (C) United States | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz - Gig-Ethernet IBM | 1004 | 2006 | 3.76 | 7.23 |
| 154 | Semiconductor Company (C) United States | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz - Gig-Ethernet IBM | 1004 | 2006 | 3.76 | 7.23 |
| 155 | Financial Services (N) United States | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz - Gig-Ethernet IBM | 1000 | 2006 | 3.76 | 7.20 |
| 156 | Financial Services (N) United States | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz - Gig-Ethernet IBM | 1000 | 2006 | 3.76 | 7.20 |
| 157 | WETA Digital New Zealand | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz - Gig-Ethernet IBM | 1000 | 2005 | 3.76 | 7.20 |
| 158 | Animal Logic Australia | BladeCenter HS20 Xeon 3.06 GHz, Gig-Ethernet IBM | 1148 | 2005 | 3.76 | 7.03 |
| 159 | Geoscience (B) India | BladeCenter HS20 Cluster, Xeon EM64T 3.4 GHz - Gig-Ethernet IBM | 1024 | 2005 | 3.76 | 6.96 |
| 160 | Semiconductor Company (C) United States | BladeCenter HS20 Cluster, Xeon EM64T 3.2 GHz, Gig-Ethernet IBM | 1088 | 2006 | 3.76 | 6.96 |
| 161 | Semiconductor Company (C) United States | BladeCenter HS20 Cluster, Xeon EM64T 3.2 GHz, Gig-Ethernet IBM | 1088 | 2006 | 3.76 | 6.96 |
| 162 | Geoscience (C) United Kingdom | xSeries Xeon 3.06 GHz - Gig-E IBM | 1128 | 2004 | 3.76 | 6.90 |
| 163 | Geoscience (C) United Kingdom | xSeries Xeon 3.06 GHz - Gig-E IBM | 1128 | 2004 | 3.76 | 6.90 |
| 164 | Semiconductor Company (D) Israel | xSeries Xeon 3.06 GHz - Gig-E IBM | 1120 | 2004 | 3.76 | 6.85 |
| 165 | Telco Canada | BladeCenter HS20 Cluster, Xeon 3.2 GHz, GigEthernet IBM | 1036 | 2005 | 3.76 | 6.63 |
| 166 | Financial Services (H) United States | BladeCenter HS20 Cluster, Xeon 3.2 GHz, GigEthernet IBM | 1024 | 2005 | 3.76 | 6.55 |
| 167 | Petroleum Company (H) China | BladeCenter HS20 Cluster, Xeon EM64T 3.2 GHz, GigEthernet IBM | 1024 | 2006 | 3.76 | 6.55 |
| 168 | Bank (H) Germany | BladeCenter Xeon 3.06 GHz, Gig-Ethernet IBM | 1064 | 2004 | 3.76 | 6.51 |
| 169 | ConocoPhillips United States | BladeCenter Xeon 3.06 GHz, Gig-Ethernet IBM | 1056 | 2004 | 3.76 | 6.46 |
| 170 | PGS United States | xSeries Cluster Xeon 3.06 GHz - Gig-E IBM | 1024 | 2003 | 3.76 | 6.27 |
| 171 | Petroleum Company (C) Brazil | xSeries Cluster Xeon 3.06 GHz - Gig-E IBM | 1024 | 2004 | 3.76 | 6.27 |
| 172 | IBM - Deep Computing Capacity on Demand Center United States | xSeries Xeon 3.06 GHz - Gig-E IBM | 1000 | 2004 | 3.76 | 6.12 |
| 173 | PETROBRAS Brazil | bwr1 - Cluster Platform 3000 DL140G3 Xeon 3.06 GHz GigEthernet Hewlett-Packard | 1300 | 2004 | 3.74 | 7.96 |
| 174 | Semiconductor Company (C) United States | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz, Gig-Ethernet IBM | 1288 | 2006 | 3.72 | 9.27 |
| 175 | Naval Oceanographic Office (NAVOCEANO) United States | pSeries 690 Turbo 1.3 GHz IBM | 1408 | 2004 | 3.72 | 7.32 |
| 176 | Louisiana State University United States | eServer pSeries p5 575 1.9 GHz IBM | 560 | 2005 | 3.71 | 4.26 |
| 177 | Classified Netherlands | Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz, GigEthernet Hewlett-Packard | 1024 | 2006 | 3.66 | 6.55 |
| 178 | Semiconductor Company (C) United States | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz, Gig-Ethernet IBM | 970 | 2006 | 3.65 | 6.98 |
| 179 | Calyon France | Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz, GigEthernet Hewlett-Packard | 1056 | 2006 | 3.65 | 6.76 |
| 180 | Calyon France | Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz, GigEthernet Hewlett-Packard | 1056 | 2006 | 3.65 | 6.76 |
| 181 | Semiconductor Company (C) United States | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz, Gig-Ethernet IBM | 966 | 2006 | 3.64 | 6.96 |
| 182 | Semiconductor Company (C) United States | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz, Gig-Ethernet IBM | 966 | 2006 | 3.64 | 6.96 |
| 183 | Semiconductor Company (C) United States | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz, Gig-Ethernet IBM | 966 | 2006 | 3.64 | 6.96 |
| 184 | Semiconductor Company (C) United States | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz, Gig-Ethernet IBM | 966 | 2006 | 3.64 | 6.96 |
| 185 | Semiconductor Company (C) United States | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz, Gig-Ethernet IBM | 966 | 2006 | 3.64 | 6.96 |
| 186 | IBM Poughkeepsie Benchmarking Center United States | BladeCenter JS21 Cluster, PPC 970, 2.5 GHz, Myrinet IBM | 512 | 2006 | 3.64 | 5.12 |
| 187 | Financial Services (O) United Kingdom | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz, Gig-Ethernet IBM | 952 | 2006 | 3.59 | 6.85 |
| 188 | Geoscience (J) China | BladeCenter HS20 Cluster, Xeon EM64T 3.4 GHz, Gig-Ethernet IBM | 980 | 2006 | 3.59 | 6.66 |
| 189 | Bank (H) Germany | BladeCenter HS20 Cluster, Xeon 3.06 GHz, GigEthernet IBM | 1448 | 2006 | 3.59 | 8.86 |
| 190 | On Demand Center United States | BladeCenter LS20, Opteron 2.4 GHz Dual core, Infiniband IBM | 1456 | 2006 | 3.59 | 6.99 |
| 191 | On Demand Center United States | BladeCenter LS20, Opteron 2.4 GHz Dual core, Infiniband IBM | 1456 | 2006 | 3.59 | 6.99 |
| 192 | On Demand Center United States | BladeCenter LS20, Opteron 2.4 GHz Dual core, Infiniband IBM | 1456 | 2006 | 3.59 | 6.99 |
| 193 | Banque National Paris France | Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz, GigEthernet Hewlett-Packard | 992 | 2006 | 3.55 | 6.35 |
| 194 | ConocoPhillips United States | Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz, GigEthernet Hewlett-Packard | 1024 | 2006 | 3.54 | 6.55 |
| 195 | Financial Institution (K) United States | Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz, GigEthernet Hewlett-Packard | 1024 | 2006 | 3.54 | 6.55 |
| 196 | Digital Media Company (B) United States | Cluster Platform 4000 DL145 Opteron 2.4 GHz Myrinet Hewlett-Packard | 944 | 2005 | 3.53 | 4.53 |
| 197 | Fujitsu Services United Kingdom | SuperDome 1 GHz/HyperPlex Hewlett-Packard | 1664 | 2006 | 3.53 | 6.66 |
| 198 | Semiconductor Company (F) India | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz, Gig-Ethernet IBM | 930 | 2006 | 3.52 | 6.70 |
| 199 | Semiconductor Company (F) India | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz, Gig-Ethernet IBM | 930 | 2006 | 3.52 | 6.70 |
| 200 | Semiconductor Company (K) Malaysia | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz, Gig-Ethernet IBM | 930 | 2006 | 3.52 | 6.70 |
| 201 | Geoscience (I) China | BladeCenter HS20 Cluster, Xeon EM64T 3.4 GHz, Gig-Ethernet IBM | 960 | 2006 | 3.52 | 6.53 |
| 202 | Sandia National Laboratories United States | ICC2 - Cluster Platform 3000 DL360G4 Xeon 3.4 GHz, GigEthernet Hewlett-Packard | 1028 | 2004 | 3.51 | 6.99 |
| 203 | Sandia National Laboratories United States | ICC2 - Cluster Platform 3000 DL360G4 Xeon 3.4 GHz, GigEthernet Hewlett-Packard | 1028 | 2004 | 3.51 | 6.99 |
| 204 | Semiconductor Company (C) United States | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz, Gig-Ethernet IBM | 924 | 2006 | 3.50 | 6.65 |
| 205 | Semiconductor Company (C) United States | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz, Gig-Ethernet IBM | 924 | 2006 | 3.50 | 6.65 |
| 206 | Semiconductor Company (C) United States | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz, Gig-Ethernet IBM | 924 | 2006 | 3.50 | 6.65 |
| 207 | Semiconductor Company (C) United States | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz, Gig-Ethernet IBM | 922 | 2006 | 3.49 | 6.64 |
| 208 | Semiconductor Company (C) United States | BladeCenter HS20 Cluster, Xeon EMT64T 3.2 GHz, GigEthernet IBM | 922 | 2006 | 3.49 | 5.90 |
| 209 | SharcNet Canada | Narwhal - Cluster Platform 4000 DL145 Opteron 2.2 GHz dual core, Myrinet Hewlett-Packard | 1068 | 2006 | 3.49 | 4.70 |
| 210 | Hewlett-Packard United States | Cluster Platform 4000 DL145 Opteron 2.2 GHz, Infiniband Hewlett-Packard | 1024 | 2005 | 3.47 | 4.51 |
| 211 | Digital Media Company (B) United States | Cluster Platform 4000 DL145 Opteron 2.4 GHz Myrinet Hewlett-Packard | 924 | 2005 | 3.46 | 4.44 |
| 212 | Geoscience (H) India | BladeCenter LS20, Opteron 2.2 GHz Dual core, GigEthernet IBM | 1400 | 2006 | 3.45 | 6.16 |
| 213 | Geoscience (H) India | BladeCenter LS20, Opteron 2.2 GHz Dual core, GigEthernet IBM | 1400 | 2006 | 3.45 | 6.16 |
| 214 | Geoscience P United States | BladeCenter LS20, Opteron 2.2 GHz Dual core, GigEthernet IBM | 1400 | 2006 | 3.45 | 6.16 |
| 215 | Geoscience P United States | BladeCenter LS20, Opteron 2.2 GHz Dual core, GigEthernet IBM | 1400 | 2006 | 3.45 | 6.16 |
| 216 | Geoscience P United States | BladeCenter LS20, Opteron 2.2 GHz Dual core, GigEthernet IBM | 1400 | 2006 | 3.45 | 6.16 |
| 217 | Geoscience P United States | BladeCenter LS20, Opteron 2.2 GHz Dual core, GigEthernet IBM | 1400 | 2006 | 3.45 | 6.16 |
| 218 | Industrial Classified Japan | Integrity Superdome, Itanium2 1.5 GHz, HyperPlex Hewlett-Packard | 768 | 2006 | 3.43 | 4.61 |
| 219 | Industrial Classified Japan | Integrity Superdome, Itanium2 1.5 GHz, HyperPlex Hewlett-Packard | 768 | 2006 | 3.43 | 4.61 |
| 220 | Semiconductor Company (C) United States | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz, Gig-Ethernet IBM | 900 | 2006 | 3.42 | 6.48 |
| 221 | Semiconductor Company (C) United States | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz, Gig-Ethernet IBM | 900 | 2006 | 3.42 | 6.48 |
| 222 | Semiconductor Company (C) United States | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz, Gig-Ethernet IBM | 900 | 2006 | 3.42 | 6.48 |
| 223 | Semiconductor Company (C) United States | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz, Gig-Ethernet IBM | 900 | 2006 | 3.42 | 6.48 |
| 224 | Galactic Computing (Shenzhen) Ltd. China | Supercomputing Blade System GT4000 Galactic Computing | 562 | 2005 | 3.41 | 4.05 |
| 225 | CINECA Italy | eServer pSeries p5 575 1.9 GHz IBM | 512 | 2005 | 3.39 | 3.89 |
| 226 | Energy Company (D) United States | eServer pSeries p5 575 1.9 GHz IBM | 512 | 2006 | 3.39 | 3.89 |
| 227 | IBM Poughkeepsie Benchmarking Center United States | eServer pSeries p5 575 1.9 GHz IBM | 512 | 2006 | 3.39 | 3.89 |
| 228 | Institute of High Performance Computing (IHPC) Singapore | eServer pSeries p5 575 1.9 GHz IBM | 512 | 2006 | 3.39 | 3.89 |
| 229 | IBM Semantic Computing Services at Almaden Research United States | BladeCenter HS20 Cluster, Xeon 3.2 GHz, GigEthernet IBM | 900 | 2006 | 3.38 | 5.76 |
| 230 | Los Alamos National Laboratory United States | PAL - Appro HyperBlade Appro International | 1028 | 2005 | 3.36 | 4.11 |
| 231 | Forecast Systems Laboratory - NOAA United States | Aspen Systems, Dual Xeon 2.2 GHz - Myrinet2000 HPTi | 1536 | 2002 | 3.34 | 6.76 |
| 232 | CINECA Italy | xSeries, Xeon 3.06 GHz, Myrinet IBM | 1024 | 2005 | 3.33 | 6.27 |
| 233 | Institute of Scientific Computing/Nankai University China | Nankai Stars - xSeries Xeon 3.06 GHz, Myrinet IBM | 768 | 2004 | 3.33 | 4.70 |
| 234 | Research Classified Japan | Experimental Cluster Self-made | 480 | 2006 | 3.33 | 6.53 |
| 235 | National Institute for Materials Science Japan | SR11000-H1/56 Hitachi | 56 | 2004 | 3.32 | 6.09 |
| 236 | Energy Company (F) United States | Cluster Platform 4000 DL145 Opteron 2.6 GHz GigEthernet Hewlett-Packard | 1120 | 2006 | 3.32 | 5.82 |
| 237 | Institute for Molecular Science Japan | SR11000-H1/50 Hitachi | 50 | 2004 | 3.30 | 5.44 |
| 238 | Government United States | Cluster Platform 3000 DL360G4 Xeon 3.4 GHz, Myrinet Hewlett-Packard | 640 | 2005 | 3.17 | 4.35 |
| 239 | Energy Company (D) United States | Cluster Platform 3000 DL360G4 Xeon 3.6 GHz, Gig-Ethernet Hewlett-Packard | 800 | 2005 | 3.17 | 5.76 |
| 240 | Semiconductor Company (C) United States | BladeCenter HS20 Cluster, Xeon EM64T 3.2 GHz - Gig-Ethernet IBM | 820 | 2006 | 3.15 | 5.25 |
| 241 | Semiconductor Company (C) United States | BladeCenter HS20 Cluster, Xeon EM64T 3.2 GHz - Gig-Ethernet IBM | 820 | 2006 | 3.15 | 5.25 |
| 242 | Semiconductor Company (C) United States | BladeCenter HS20 Cluster, Xeon EM64T 3.2 GHz - Gig-Ethernet IBM | 820 | 2006 | 3.15 | 5.25 |
| 243 | Semiconductor Company (C) United States | BladeCenter HS20 Cluster, Xeon EM64T 3.2 GHz - Gig-Ethernet IBM | 820 | 2006 | 3.15 | 5.25 |
| 244 | Semiconductor Company (C) United States | BladeCenter HS20 Cluster, Xeon EM64T 3.2 GHz - Gig-Ethernet IBM | 820 | 2006 | 3.15 | 5.25 |
| 245 | Semiconductor Company (C) United States | BladeCenter HS20 Cluster, Xeon EM64T 3.2 GHz - Gig-Ethernet IBM | 820 | 2006 | 3.15 | 5.25 |
| 246 | UCSD/San Diego Supercomputer Center United States | TeraGrid Cluster, Itanium 2 1.3 GHz, Myrinet IBM | 768 | 2004 | 3.15 | 3.99 |
| 247 | Semiconductor Company (C) United States | BladeCenter HS20 Cluster, Xeon EM64T 3.2 GHz, Gig-Ethernet IBM | 818 | 2006 | 3.15 | 5.24 |
| 248 | Paramount Pictures United States | Fire V20z Cluster, Opteron 2.6 GHz dual core, GigEthernet, Solaris Sun Microsystems | 1192 | 2006 | 3.15 | 6.20 |
| 249 | The University of Nottingham United Kingdom | Jupiter - Fire V20z Cluster, Opteron 2.2 GHz, Gig Ethernet Sun Microsystems | 1024 | 2005 | 3.15 | 4.39 |
| 250 | Geoscience P United States | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz, Gig-Ethernet IBM | 816 | 2006 | 3.14 | 5.88 |
| 251 | Geoscience P United States | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz, Gig-Ethernet IBM | 816 | 2006 | 3.14 | 5.88 |
| 252 | Geoscience P United States | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz, Gig-Ethernet IBM | 816 | 2006 | 3.14 | 5.88 |
| 253 | Geoscience P United States | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz, Gig-Ethernet IBM | 816 | 2006 | 3.14 | 5.88 |
| 254 | Geoscience P United States | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz, Gig-Ethernet IBM | 816 | 2006 | 3.14 | 5.88 |
| 255 | Institute of Genomics and Integrative Biology India | Cluster Platform 3000 DL140G2 Xeon 3.6 GHz Infiniband Hewlett-Packard | 576 | 2005 | 3.14 | 4.15 |
| 256 | Digital Media Company (D) United States | Blade Cluster BL-20P, Pentium4 Xeon 3.06 GHz Hewlett-Packard | 1000 | 2005 | 3.12 | 6.12 |
| 257 | Digital Media Company (D) United States | Blade Cluster BL-20P, Pentium4 Xeon 3.06 GHz Hewlett-Packard | 1000 | 2005 | 3.12 | 6.12 |
| 258 | Digital Media Company (D) United States | Blade Cluster BL-20P, Pentium4 Xeon 3.06 GHz Hewlett-Packard | 1000 | 2005 | 3.12 | 6.12 |
| 259 | Digital Media Company (D) United States | Blade Cluster BL-20P, Pentium4 Xeon 3.06 GHz Hewlett-Packard | 1000 | 2005 | 3.12 | 6.12 |
| 260 | Digital Media Company (D) United States | Blade Cluster BL-20P, Pentium4 Xeon 3.06 GHz Hewlett-Packard | 1000 | 2005 | 3.12 | 6.12 |
| 261 | Digital Media Company (D) United States | Blade Cluster BL-20P, Pentium4 Xeon 3.06 GHz Hewlett-Packard | 1000 | 2005 | 3.12 | 6.12 |
| 262 | Digital Media Company (D) United States | Blade Cluster BL-20P, Pentium4 Xeon 3.06 GHz Hewlett-Packard | 1000 | 2005 | 3.12 | 6.12 |
| 263 | Digital Media Company (D) United States | Blade Cluster BL-20P, Pentium4 Xeon 3.06 GHz Hewlett-Packard | 1000 | 2005 | 3.12 | 6.12 |
| 264 | Government United States | Cluster Platform 4000 DL145 Opteron Dual Core 2.4 GHz GigEthernet Hewlett-Packard | 1108 | 2006 | 3.08 | 5.32 |
| 265 | Government United States | Cluster Platform 4000 DL145 Opteron Dual Core 2.4 GHz GigEthernet Hewlett-Packard | 1108 | 2006 | 3.08 | 5.32 |
| 266 | Gaming Company (B) China | Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz Hewlett-Packard | 860 | 2005 | 3.08 | 5.50 |
| 267 | Gaming Company (B) China | Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz Hewlett-Packard | 860 | 2005 | 3.08 | 5.50 |
| 268 | Gaming Company (B) China | Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz Hewlett-Packard | 860 | 2005 | 3.08 | 5.50 |
| 269 | Gaming Company (B) China | Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz Hewlett-Packard | 860 | 2005 | 3.08 | 5.50 |
| 270 | Gaming Company (B) China | Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz Hewlett-Packard | 860 | 2005 | 3.08 | 5.50 |
| 271 | Manufacturer (G) United States | eServer p5 570 POWER5 1.9 GHz, GigEth IBM | 720 | 2004 | 3.07 | 5.47 |
| 272 | Korea Institute of Science and Technology Korea, South | Nankai Star - xSeries Xeon 2.4 GHz, Myrinet IBM | 1024 | 2004 | 3.07 | 4.92 |
| 273 | University of Sherbrooke Canada | Ms - PowerEdge 750, P4 3.2 GHz, GigE Dell | 872 | 2004 | 3.06 | 5.58 |
| 274 | Naval Research Laboratory (NRL) United States | Cray XD1, 2.2 GHz Cray Inc. | 864 | 2006 | 3.04 | 3.80 |
| 275 | Animal Logic Australia | BladeCenter HS20 Cluster, Xeon EM64T 3.2 GHz, GigEthernet IBM | 784 | 2005 | 3.03 | 5.02 |
| 276 | Semiconductor Company (E) United States | xSeries Cluster Xeon 3.06 GHz - Gig-E IBM | 800 | 2003 | 3.00 | 4.90 |
| 277 | Sony. Information Technologies Laboratories. Japan | Cray XD1, 2.2 GHz Cray Inc. | 825 | 2005 | 3.00 | 3.63 |
| 278 | New York University United States | eServer BladeCenter JS20 (PowerPC970 2.2 GHz), Myrinet IBM | 512 | 2005 | 2.99 | 4.51 |
| 279 | PETROBRAS Brazil | bw7 - Cluster Platform 3000 DL140G3 Xeon 3.06 GHz GigEthernet Hewlett-Packard | 1008 | 2004 | 2.99 | 6.17 |
| 280 | The University of Florida High-Performance Computing Center United States | GatorRack - Rackable Foundation C1001, Opteron Dual-Core 2.2GHz, InfiniBand Rackable Systems | 832 | 2006 | 2.97 | 3.66 |
| 281 | Amdocs United States | Integrity Superdome, Itanium2 1.5 GHz, HyperPlex Hewlett-Packard | 662 | 2006 | 2.96 | 3.97 |
| 282 | Classified United States | BladeCenter LS20, Opteron 2.2 GHz Dual core, GigEthernet IBM | 1200 | 2006 | 2.96 | 5.28 |
| 283 | Classified United States | BladeCenter LS20, Opteron 2.2 GHz Dual core, GigEthernet IBM | 1200 | 2006 | 2.96 | 5.28 |
| 284 | Classified United States | BladeCenter LS20, Opteron 2.2 GHz Dual core, GigEthernet IBM | 1200 | 2006 | 2.96 | 5.28 |
| 285 | Classified United States | BladeCenter LS20, Opteron 2.2 GHz Dual core, GigEthernet IBM | 1200 | 2006 | 2.96 | 5.28 |
| 286 | Classified United States | BladeCenter LS20, Opteron 2.2 GHz Dual core, GigEthernet IBM | 1200 | 2006 | 2.96 | 5.28 |
| 287 | Geoscience (H) India | BladeCenter LS20, Opteron 2.2 GHz Dual core, GigEthernet IBM | 1200 | 2006 | 2.96 | 5.28 |
| 288 | HSBC (Hongkong Shanghai Banking Corporation) France | Blade Cluster BL-25P, Opteron 2.4 GHz, GigEthernet Hewlett-Packard | 1100 | 2006 | 2.95 | 5.28 |
| 289 | Government United States | Cray X1 Cray Inc. | 252 | 2003 | 2.93 | 3.23 |
| 290 | Techmex Far East Pte. Ltd. Singapore | Integrity Superdome, Itanium2 1.5 GHz, HyperPlex Hewlett-Packard | 656 | 2006 | 2.93 | 3.94 |
| 291 | Semiconductor Company (C) United States | xSeries Xeon 3.06 GHz - Gig-E IBM | 780 | 2004 | 2.93 | 4.77 |
| 292 | Central Research Institute of Electric Power Industry/CRIEPI Japan | SX8/192M24 NEC | 192 | 2006 | 2.91 | 3.07 |
| 293 | Petro China China | Blade Cluster BL-20P, Pentium4 Xeon 3.4 GHz, GigEthernet Hewlett-Packard | 792 | 2006 | 2.91 | 5.39 |
| 294 | BMW AG Germany | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz - Gig-Ethernet IBM | 740 | 2006 | 2.89 | 5.33 |
| 295 | University of Tokyo/Institute for Solid State Physics Japan | SGI Altix 3700 Bx2, 1.5 GHz, NUMAlink, GigEth SGI | 1280 | 2005 | 2.89 | 7.68 |
| 296 | Sandia National Laboratories United States | ICC1 - Cluster Platform DL360G3, Pentium4 Xeon 2.8 GHz, Myrinet Hewlett-Packard | 1024 | 2004 | 2.88 | 5.73 |
| 297 | Sandia National Laboratories United States | ICC1 - Cluster Platform DL360G3, Pentium4 Xeon 2.8 GHz, Myrinet Hewlett-Packard | 1024 | 2004 | 2.88 | 5.73 |
| 298 | Government Classified United States | Cluster Platform 3000 DL360G3 Xeon 2.8 GHz GigEthernet Hewlett-Packard | 1024 | 2005 | 2.88 | 5.73 |
| 299 | CINECA Italy | BladeCenter LS20, Opteron 2.2 GHz Dual core, Infiniband IBM | 1064 | 2006 | 2.87 | 4.68 |
| 300 | Semiconductor Company (C) United States | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz - Gig-Ethernet IBM | 736 | 2005 | 2.87 | 5.30 |