| Rank | Site | Computer | Cores | Year | Rmax | Rpeak | | 201 | UCSD/Cal-IT^2/SDSC United States | Rocks V60x Cluster 2.8 GHz, Gig Ethernet Sun Microsystems | 256 | 2003 | 699 | 1433.6 |
| 202 | Cambridge University - COSMOS United Kingdom | SGI Altix 1.3 GHz SGI | 152 | 2003 | 697.481 | 790.4 |
| 203 | Japan Meteorological Agency Japan | SR8000-E1/80 Hitachi | 80 | 2000 | 691.3 | 768 |
| 204 | Los Alamos National Laboratory/ACL United States | ORIGIN 2000 250 MHz SGI | 2048 | 1999 | 690.9 | 1024 |
| 205 | ERDC MSRC United States | AlphaServer SC40, 833 MHz Hewlett-Packard | 512 | 2002 | 690.9 | 853 |
| 206 | American Museum of Natural History United States | Demeter - P4 Xeon 2.6 Ghz - Myrinet Linux Labs | 240 | 2003 | 680.3 | 1248 |
| 207 | COLSA United States | pSeries 690 Turbo 1.3GHz IBM | 240 | 2002 | 680 | 1248 |
| 208 | US Department of the Treasury United States | pSeries 690 Turbo 1.3GHz IBM | 240 | 2002 | 680 | 1248 |
| 209 | Fermi National Accelerator Laboratory United States | P4 Xeon Cluster 2.4 GHz - Myrinet Self-made | 256 | 2003 | 671.3 | 1228.8 |
| 210 | CSAR at the University of Manchester United Kingdom | T3E1200 Cray Inc. | 812 | 2000 | 671 | 974.4 |
| 211 | Petroleum Company (G) Saudia Arabia | Fire V60 Cluster, 3.06 GHz, Myrinet Sun Microsystems | 256 | 2003 | 656.7 | 1566.72 |
| 212 | Petroleum Company (G) Saudia Arabia | Fire V60 Cluster, 3.06 GHz, Myrinet Sun Microsystems | 256 | 2003 | 656.7 | 1566.72 |
| 213 | Petroleum Company (G) Saudia Arabia | Fire V60 Cluster, 3.06 GHz, Gig Ethernet Sun Microsystems | 256 | 2003 | 656.7 | 1566.72 |
| 214 | Petroleum Company (G) Saudia Arabia | Fire V60 Cluster, 3.06 GHz, Myrinet Sun Microsystems | 256 | 2003 | 656.7 | 1566.72 |
| 215 | Petroleum Company (G) Saudia Arabia | Fire V60 Cluster, 3.06 GHz, Myrinet Sun Microsystems | 256 | 2003 | 656.7 | 1566.72 |
| 216 | Petroleum Company (G) Saudia Arabia | Fire V60 Cluster, 3.06 GHz, Gig Ethernet Sun Microsystems | 256 | 2003 | 656.7 | 1566.72 |
| 217 | Petroleum Company (G) Saudia Arabia | Fire V60 Cluster, 3.06 GHz, Gig Ethernet Sun Microsystems | 256 | 2003 | 656.7 | 1566.72 |
| 218 | Sun United States | Fire V60 Cluster, Myrinet Sun Microsystems | 256 | 2003 | 656.7 | 1433.6 |
| 219 | University of Delaware United States | Fire V60 Cluster, Myrinet Sun Microsystems | 256 | 2003 | 656.7 | 1433.6 |
| 220 | University of Queensland Australia | Fire V60 Cluster, Gig Ethernet Sun Microsystems | 256 | 2003 | 656.7 | 1433.6 |
| 221 | Fraunhofer Institut, Ernst-Mach Institute Germany | xSeries Cluster Xeon 2.0 GHz - Myrinet IBM | 256 | 2003 | 654.7 | 1024 |
| 222 | CBRC - Tsukuba Advanced Computing Center - TACC/AIST Japan | Magi Cluster PIII 933 MHz NEC | 1040 | 2001 | 654 | 970 |
| 223 | Pacific Northwest National Laboratory United States | SGI Altix 1.5 GHz SGI | 128 | 2003 | 651.7 | 768 |
| 224 | Silicon Graphics United States | SGI Altix 1.5 GHz SGI | 128 | 2003 | 651.7 | 768 |
| 225 | Boeing - Rocketdyne Power and Propulsion United States | PowerEdge 2650 Cluster P4 Xeon 2.4 GHz - GigE Dell | 264 | 2003 | 650 | 1267.2 |
| 226 | BMW AG Germany | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 128 | 2003 | 642.9 | 768 |
| 227 | Centro de Supercomputación de Galicia Spain | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 128 | 2003 | 642.9 | 768 |
| 228 | Hewlett-Packard United States | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 128 | 2003 | 642.9 | 768 |
| 229 | National Center for High Performance Computing Taiwan | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 128 | 2003 | 642.9 | 768 |
| 230 | Societa Interbancaria per I'Automazione Italy | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 128 | 2003 | 642.9 | 768 |
| 231 | University of Gdansk, CI Task Poland | Holk - Itanium2 1.3 GHz, Gig Ethernet Optimus | 256 | 2003 | 641.6 | 1331.2 |
| 232 | Compagnie Generale de Geophysique (CGG) Indonesia | BladeCenter Cluster, Xeon 2.8 GHz, Gig-Ethernet IBM | 256 | 2003 | 638.8 | 1433.6 |
| 233 | Hyundai Korea, South | xSeries Xeon 2.8 GHz, GigEthernet IBM | 256 | 2003 | 638.8 | 1433.6 |
| 234 | IBM - Deep Computing Capacity on Demand Center United States | xSeries Xeon 2.8 GHz, GigEthernet IBM | 256 | 2003 | 638.8 | 1433.6 |
| 235 | IBM - Deep Computing Capacity on Demand Center United States | xSeries Xeon 2.8 GHz, GigEthernet IBM | 256 | 2003 | 638.8 | 1433.6 |
| 236 | IBM - Deep Computing Capacity on Demand Center United States | xSeries Xeon 2.8 GHz, GigEthernet IBM | 256 | 2003 | 638.8 | 1433.6 |
| 237 | IBM - Deep Computing Capacity on Demand Center United States | xSeries Xeon 2.8 GHz, GigEthernet IBM | 256 | 2003 | 638.8 | 1433.6 |
| 238 | Lockheed Martin United States | xSeries Xeon 2.8 GHz, GigEthernet IBM | 256 | 2003 | 638.8 | 1433.6 |
| 239 | Petroleum Company (A) United States | xSeries Xeon 2.8 GHz, GigEthernet IBM | 256 | 2003 | 638.8 | 1433.6 |
| 240 | University of Hong Kong Hong Kong | HPCPower - xSeries Xeon 2.8 GHz, GigEthernet IBM | 256 | 2003 | 638.8 | 1433.6 |
| 241 | E*Trade United States | xSeries Cluster Xeon 2.4 GHz - Gig-E IBM | 290 | 2003 | 633.992 | 1392 |
| 242 | Victorian Partnership for Advanced Computing (VPAC) Australia | xSeries Cluster Xeon 2.8 GHz - Myrinet IBM | 192 | 2003 | 629.7 | 1075 |
| 243 | Institute of High Performance Computing (IHPC) Singapore | pSeries 690 Turbo 1.3GHz IBM | 224 | 2002 | 623.9 | 1164.8 |
| 244 | Manufacturer (G) United States | pSeries 690 Turbo 1.3GHz IBM | 224 | 2002 | 623.9 | 1164.8 |
| 245 | IBM United States | pSeries 690 1.1GHz IBM | 256 | 2003 | 623 | 1126.4 |
| 246 | AMD Developer Center United States | Morpheus - Opteron 1.8 GHz, Myrinet Verari Systems | 256 | 2003 | 621.2 | 921.6 |
| 247 | University of Utah United States | PowerEdge 2650 Cluster P4 Xeon 2.4 GHz - GigE Dell | 256 | 2002 | 618.3 | 1228.8 |
| 248 | Real World Computing (RWCP)/Tsukuba Research Center Japan | SCore IIIe/PIII 933 MHz Self-made | 1024 | 2001 | 618.3 | 955.4 |
| 249 | Meteorological Service of Canada (MSC) Canada | SX-6/80M10 NEC | 80 | 2002 | 616.9 | 640 |
| 250 | St. Jude Children's Research Hospital United States | BladeCenter Cluster Xeon 2.4 GHz, Gig-Ethernet IBM | 280 | 2003 | 613.9 | 1344 |
| 251 | Hewlett-Packard United States | Cluster Platform 6000 rx2600 Itanium2 1.5 GHz, Quadrics Hewlett-Packard | 128 | 2003 | 609.2 | 768 |
| 252 | University of Oklahoma United States | P4 Xeon Cluster 2 GHz - Myrinet Aspen Systems Inc. | 270 | 2002 | 606.9 | 1080 |
| 253 | Galileo International LLC United States | xSeries Xeon 2.8 GHz, GigEthernet IBM | 240 | 2003 | 604.062 | 1344 |
| 254 | IBM United States | pSeries 690 Turbo 1.5 Ghz GigEth IBM | 176 | 2003 | 596.933 | 1056 |
| 255 | University of Calgary Canada | xSeries Cluster Xeon 2.4 GHz - Gig-E IBM | 278 | 2003 | 596.283 | 1334.4 |
| 256 | Naval Research Laboratory (NRL) United States | SGI Altix 1.3 GHz SGI | 128 | 2003 | 594.9 | 665.6 |
| 257 | Center for Development of Advanced Computing (C-DAC) India | PARAM Padma Cluster - pSeries 630 1.1/1.0GHz - PARAMNet C-DAC | 280 | 2003 | 594.2 | 1132.8 |
| 258 | NCSA United States | Netfinity Cluster PIII 1 GHz - Myrinet IBM | 1024 | 2001 | 594 | 1024 |
| 259 | University of Texas, Health Science Center at Houston United States | PowerEdge 1750, Pentium4 Xeon 2.8 GHz, GigE Dell | 180 | 2003 | 593.266 | 1008 |
| 260 | Consumer Industry Germany | xSeries Xeon 2.8 GHz, GigEthernet IBM | 234 | 2003 | 591.073 | 1310.4 |
| 261 | W. Karmann GmbH Germany | xSeries Xeon 2.8 GHz, GigEthernet IBM | 234 | 2003 | 591.073 | 1310.4 |
| 262 | Wachovia Corporation United States | pSeries 690 Turbo 1.3GHz IBM | 208 | 2002 | 591 | 1081.6 |
| 263 | CNRS/IDRIS France | pSeries 690 Turbo 1.3 GHz, GigEth IBM | 256 | 2002 | 590.2 | 1331.2 |
| 264 | Postbank Germany | pSeries 690 Turbo 1.3 GHz, GigEth IBM | 256 | 2002 | 590.2 | 1331.2 |
| 265 | Linux Networx United States | Pentium4 Xeon 3.06 GHz, Myrinet Linux Networx | 144 | 2003 | 585.6 | 881.28 |
| 266 | Commissariat a l'Energie Atomique (CEA) France | AlphaServer SC45, 1.25 GHz Hewlett-Packard | 288 | 2003 | 581.6 | 720 |
| 267 | Sprint PCS United States | SP Power3 375 MHz 16 way IBM | 528 | 2002 | 579 | 792 |
| 268 | Hewlett Packard Germany | Cluster Platform 6000 rx2600 Itanium2 1.5 GHz, Myrinet Hewlett-Packard | 128 | 2003 | 579 | 768 |
| 269 | Financial Services (C) United States | pSeries 690 Turbo 1.3 GHz GigEth IBM | 248 | 2003 | 577.1 | 1289.6 |
| 270 | University of Tokyo/Institute for Solid State Physics Japan | SR8000-F1/60 Hitachi | 60 | 2000 | 577 | 720 |
| 271 | Naval Research Laboratory (NRL) United States | 1200X P4 Xeon 2.2 GHz - Myrinet Appro International | 256 | 2002 | 575 | 1126.4 |
| 272 | PIK Germany | pSeries 655 1.1GHz IBM | 240 | 2003 | 574.9 | 1056 |
| 273 | Telecom Italia Italy | pSeries 690 Turbo 1.3GHz IBM | 200 | 2002 | 574 | 1040 |
| 274 | Government United States | AlphaServer SC45, 1.25 GHz Hewlett-Packard | 276 | 2003 | 572.7 | 690 |
| 275 | University of Zurich - Institute for Theoretical Physics Switzerland | zBox, AMD AthlonMP 1.8 GHz - SCI 2D Self-made | 288 | 2003 | 570.1 | 1036.8 |
| 276 | IBM Thomas J. Watson Research Center United States | SP Power3 375 MHz 16 way IBM | 520 | 2002 | 570 | 780 |
| 277 | Japan Atomic Energy Research Institute Japan | VPP5000/64 Fujitsu | 64 | 2001 | 563 | 614.4 |
| 278 | Kyushu University Japan | VPP5000/64 Fujitsu | 64 | 2000 | 563 | 614.4 |
| 279 | Meteo-France France | VPP5000/64 Fujitsu | 64 | 2003 | 563 | 614.4 |
| 280 | Petroleum Company (G) Saudia Arabia | SP Power3 375 MHz 16 way IBM | 512 | 2001 | 561 | 768 |
| 281 | US Army Research Laboratory (ARL) United States | SP Power3 375 MHz 16 way IBM | 512 | 2000 | 561 | 768 |
| 282 | ID-IMAG / INRIA Rhone-Alpes France | Cluster Platform 6000 rx2600 Itanium2 900 MHz Cluster - Myrinet Hewlett-Packard | 208 | 2003 | 561 | 748.8 |
| 283 | Deutsche Telekom AG Germany | SP Power3 375 MHz IBM | 528 | 2000 | 553 | 792 |
| 284 | Wright-Patterson Air Force Base/DoD ASC United States | SP Power3 375 MHz IBM | 528 | 2000 | 553 | 792 |
| 285 | ERDC MSRC United States | ORIGIN 3000 700 MHz SGI | 512 | 2003 | 553 | 716.8 |
| 286 | ERDC MSRC United States | ORIGIN 3000 700 MHz SGI | 512 | 2003 | 553 | 716.8 |
| 287 | Government United States | ORIGIN 3000 700 MHz SGI | 512 | 2003 | 553 | 716.8 |
| 288 | Government United States | ORIGIN 3000 700 MHz SGI | 512 | 2003 | 553 | 716.8 |
| 289 | Wright-Patterson Air Force Base/DoD ASC United States | ORIGIN 3000 700 MHz SGI | 512 | 2003 | 553 | 716.8 |
| 290 | Wright-Patterson Air Force Base/DoD ASC United States | ORIGIN 3000 700 MHz SGI | 512 | 2003 | 553 | 716.8 |
| 291 | Wright-Patterson Air Force Base/DoD ASC United States | ORIGIN 3000 700 MHz SGI | 512 | 2003 | 553 | 716.8 |
| 292 | United Kingdom Meteorological Office United Kingdom | T3E900 Cray Inc. | 876 | 1997 | 552 | 788.4 |
| 293 | University of Michigan, Center for Advanced Computing United States | AMD AthlonMP Cluster 1.667 GHz - Myrinet Atipa Technology | 256 | 2003 | 550 | 853.5 |
| 294 | Financial Services (D) United States | pSeries 690 Turbo 1.7 GHz GigEth IBM | 144 | 2003 | 549 | 979.2 |
| 295 | State Farm United States | SP Power3 375 MHz IBM | 520 | 2001 | 546 | 780 |
| 296 | Wright-Patterson Air Force Base/DoD ASC United States | AlphaServer SC45, 1 GHz Hewlett-Packard | 324 | 2002 | 540 | 648 |
| 297 | Government Germany | AlphaServer SC45, 1.25 GHz Hewlett-Packard | 256 | 2003 | 538.4 | 640 |
| 298 | Los Alamos National Laboratory United States | ASCI Q - AlphaServer SC45, 1.25 GHz Hewlett-Packard | 256 | 2002 | 538.4 | 640 |
| 299 | Pharmaceutical Company Germany | SP Power3 375 MHz IBM | 510 | 2001 | 536 | 765 |
| 300 | Indiana University United States | SP Power3 375 MHz IBM | 508 | 2001 | 534 | 762 |
| 301 | Amdocs United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 256 | 2003 | 530.5 | 896 |
| 302 | Amdocs United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 256 | 2003 | 530.5 | 896 |
| 303 | IT Telecom S.P.A. Italy | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 256 | 2003 | 530.5 | 896 |
| 304 | OverWrite United Kingdom | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 256 | 2002 | 530.5 | 896 |
| 305 | OverWrite Germany | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 256 | 2003 | 530.5 | 896 |
| 306 | POSDATA Korea, South | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 256 | 2003 | 530.5 | 896 |
| 307 | T-Systems Spain | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 256 | 2003 | 530.5 | 896 |
| 308 | Telecommunication Company United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 256 | 2003 | 530.5 | 896 |
| 309 | Triumph Technology Taiwan | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 256 | 2003 | 530.5 | 896 |
| 310 | Vodafone Spain | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 256 | 2003 | 530.5 | 896 |
| 311 | Netsiel S.P.A. Italy | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 256 | 2003 | 529.6 | 896 |
| 312 | SBC Service Inc United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 256 | 2003 | 529.6 | 896 |
| 313 | Samsung SDS Korea, South | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 256 | 2003 | 529.6 | 896 |
| 314 | Sanpaolo Leasint SpA Italy | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 256 | 2003 | 529.6 | 896 |
| 315 | University of Nebraska United States | Prairiefire AMD 1.8 GHz - Myrinet Atipa Technology | 256 | 2003 | 528.9 | 920.6 |
| 316 | ABN AMRO Netherlands | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 256 | 2003 | 526.2 | 896 |
| 317 | United Kingdom Meteorological Office United Kingdom | T3E1200 Cray Inc. | 636 | 1999 | 526 | 763.2 |
| 318 | Grid Technology Research Center, AIST Japan | Gfarm Cluster I - Xeon 2.8 GHz - GigE Self-made | 180 | 2003 | 520.7 | 1008 |
| 319 | VW (Volkswagen AG) Germany | Express5800 120RC-1, P4 2.8GHz Cluster - GigE NEC | 256 | 2003 | 519.8 | 1433.6 |
| 320 | Correios Telegrafos Brazil | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 256 | 2003 | 517 | 896 |
| 321 | Correios Telegrafos Brazil | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 256 | 2003 | 517 | 896 |
| 322 | DeTeCSM Germany | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 256 | 2003 | 517 | 896 |
| 323 | EDS United Kingdom | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 256 | 2003 | 517 | 896 |
| 324 | Forsythe & Mcarthur United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 256 | 2003 | 517 | 896 |
| 325 | Hitachi Japan | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 256 | 2003 | 517 | 896 |
| 326 | Hitachi IPD Jigyobu (SP-OEM) Japan | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 256 | 2003 | 517 | 896 |
| 327 | Lockheed Martin United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 256 | 2003 | 517 | 896 |
| 328 | SAT/ISOSA Mexico | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 256 | 2003 | 517 | 896 |
| 329 | T-Systems Germany | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 256 | 2003 | 517 | 896 |
| 330 | State Farm United States | SP Power3 375 MHz IBM | 488 | 2001 | 512 | 732 |
| 331 | Agricultural Research New Zealand | Blade Cluster BL-20P, Pentium4 Xeon 2.8 GHz, GigEthernet Hewlett-Packard | 128 | 2003 | 511 | 716.8 |
| 332 | BMW AG Germany | Cluster Platform DL360G3, Pentium4 Xeon 2.8 GHz, Myrinet Hewlett-Packard | 128 | 2003 | 511 | 716.8 |
| 333 | Ministry of Agriculture Japan | Cluster Platform 3000 DL380G3, Pentium4 Xeon 2.8 GHz, Myrinet Hewlett-Packard | 128 | 2003 | 511 | 716.8 |
| 334 | Norsk Hydro Norway | Cluster Platform DL360G3, Pentium4 Xeon 2.8 GHz, Myrinet Hewlett-Packard | 128 | 2003 | 511 | 716.8 |
| 335 | PETROBRAS Brazil | Cluster Platform DL360G3, Pentium4 Xeon 2.8 GHz, Myrinet Hewlett-Packard | 128 | 2003 | 511 | 716.8 |
| 336 | Statoil Norway | Cluster Platform DL360G3, Pentium4 Xeon 2.8 GHz, Myrinet Hewlett-Packard | 128 | 2003 | 511 | 716.8 |
| 337 | The University of Nottingham United Kingdom | Cluster Platform DL360G3, Pentium4 Xeon 2.8 GHz, Myrinet Hewlett-Packard | 128 | 2003 | 511 | 716.8 |
| 338 | Williams Racing United Kingdom | Cluster Platform DL360G3, Pentium4 Xeon 2.8 GHz, Myrinet Hewlett-Packard | 128 | 2003 | 511 | 716.8 |
| 339 | IBM - Rochester United States | BladeCenter Cluster Xeon 2.8 GHz, Gig-Ethernet IBM | 196 | 2003 | 508.863 | 1097.6 |
| 340 | Hewlett-Packard United States | AlphaServer SC ES40/EV67 Hewlett-Packard | 512 | 2000 | 507.6 | 682.66 |
| 341 | Lawrence Livermore National Laboratory United States | AlphaServer SC ES40/EV67 Hewlett-Packard | 512 | 2000 | 507.6 | 682.66 |
| 342 | Universitaet Wien Austria | P4 Cluster 2.53 GHz - GigE init.at | 192 | 2003 | 504.3 | 971 |
| 343 | Danish Meteorological Institute Denmark | SX-6/64M8 NEC | 64 | 2003 | 495.2 | 512 |
| 344 | National Aerospace Laboratory of Japan Japan | SX-6/64M8 NEC | 64 | 2002 | 495.2 | 512 |
| 345 | National Institute for Environmental Studies Japan | SX-6/64M8 NEC | 64 | 2002 | 495.2 | 512 |
| 346 | Manufacturing Company (F) Italy | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 96 | 2003 | 495 | 576 |
| 347 | Centre Informatique National (CINES) France | SP Power3 375 MHz IBM | 472 | 2001 | 494 | 708 |
| 348 | Citicorp United States | pSeries 690 Turbo 1.3GHz GigEth IBM | 200 | 2002 | 493 | 1040 |
| 349 | Research Center for Explosion Safety, AIST Japan | Bakoo Cluster - PC-KOUBOU SUPER AMPHIS2800X/Xeon 2.8GHz, Myrinet Self-made | 128 | 2003 | 492.9 | 716.8 |
| 350 | Nagoya University Japan | VPP5000/56 Fujitsu | 56 | 1999 | 492 | 537.6 |
| 351 | Lawrence Livermore National Laboratory United States | SP Power3 375 MHz 16 way IBM | 448 | 2001 | 491 | 672 |
| 352 | KTH - Royal Institute of Technology Sweden | Cluster Platform 6000 rx2600 Itanium2 900 MHz Cluster - Myrinet Hewlett-Packard | 180 | 2003 | 489 | 648 |
| 353 | Rice University United States | Cluster Platform 6000 zx6000 Itanium2 900 MHz, Myrinet Hewlett-Packard | 174 | 2003 | 487.2 | 626.4 |
| 354 | Kyoto University Japan | VPP800/63 Fujitsu | 63 | 1999 | 482 | 504 |
| 355 | Umea University / HPC2N Sweden | AMD 1.66 GHz - SCI 3D-torus Self-made | 240 | 2002 | 481 | 800 |
| 356 | CIE Gegetel SI France | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 224 | 2003 | 479.5 | 784 |
| 357 | Centrica Plc United Kingdom | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 224 | 2002 | 479.5 | 784 |
| 358 | Youngwoo Korea, South | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 224 | 2003 | 479.5 | 784 |
| 359 | Universitaet Stuttgart, ITB Germany | BioCORTEX AMD 1.533 GHz - Myrinet Self-made | 256 | 2003 | 478.4 | 784.9 |
| 360 | Hewlett-Packard United States | SuperDome 750 MHz/HyperFabric Hewlett-Packard | 256 | 2002 | 470.9 | 768 |
| 361 | Instituto Nacional de Meteorologia Spain | Cray X1 Cray Inc. | 40 | 2003 | 468.377 | 512 |
| 362 | Lawrence Livermore National Laboratory United States | ASCI Blue-Pacific CTR, IBM SP 604e IBM | 1344 | 1998 | 468.2 | 892.4 |
| 363 | Morse Computer United Kingdom | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 224 | 2003 | 468.1 | 784 |
| 364 | Cambridge University United Kingdom | Fire 15K 1.05 GHz Sun Microsystems | 300 | 2002 | 468.1 | 630 |
| 365 | Cambridge University United Kingdom | Fire 15K 1.05 GHz Sun Microsystems | 300 | 2002 | 468.1 | 630 |
| 366 | Cambridge University United Kingdom | Fire 15K 1.05 GHz Sun Microsystems | 300 | 2002 | 468.1 | 630 |
| 367 | IKON United States | pSeries 690 Turbo 1.3GHz IBM | 160 | 2002 | 468 | 832 |
| 368 | Government United States | ORIGIN 3000 600 MHz SGI | 512 | 2002 | 466 | 614.4 |
| 369 | Government United States | ORIGIN 3000 600 MHz SGI | 512 | 2002 | 466 | 614.4 |
| 370 | Government United States | ORIGIN 3000 600 MHz SGI | 512 | 2002 | 466 | 614.4 |
| 371 | Government United States | ORIGIN 3000 600 MHz SGI | 512 | 2002 | 466 | 614.4 |
| 372 | NOAA/Geophysical Fluid Dynamics Laboratory (GFDL) United States | ORIGIN 3000 600 MHz SGI | 512 | 2003 | 466 | 614.4 |
| 373 | NOAA/Geophysical Fluid Dynamics Laboratory (GFDL) United States | ORIGIN 3000 600 MHz SGI | 512 | 2001 | 466 | 614.4 |
| 374 | NOAA/Geophysical Fluid Dynamics Laboratory (GFDL) United States | ORIGIN 3000 600 MHz SGI | 512 | 2003 | 466 | 614.4 |
| 375 | NOAA/Geophysical Fluid Dynamics Laboratory (GFDL) United States | ORIGIN 3000 600 MHz SGI | 512 | 2001 | 466 | 614.4 |
| 376 | NOAA/Geophysical Fluid Dynamics Laboratory (GFDL) United States | ORIGIN 3000 600 MHz SGI | 512 | 2003 | 466 | 614.4 |
| 377 | Norwegian University of Science and Technology Norway | ORIGIN 3000 600 MHz SGI | 512 | 2002 | 466 | 614.4 |
| 378 | Otto Versand Germany | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 224 | 2003 | 463.1 | 784 |
| 379 | Telkom SA South Africa | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 224 | 2003 | 463.1 | 784 |
| 380 | IBM United States | xSeries Cluster Xeon 2.8 GHz - Myrinet IBM | 128 | 2003 | 450 | 716.8 |
| 381 | BMW AG Germany | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 256 | 2002 | 449.4 | 768 |
| 382 | Centrica Plc United Kingdom | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 256 | 2002 | 449.4 | 768 |
| 383 | Hewlett-Packard United States | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 256 | 2002 | 449.4 | 768 |
| 384 | Wachovia Corporation United States | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 256 | 2003 | 449.4 | 768 |
| 385 | Tsukuba Advanced Computing Center - TACC/AIST Japan | SR8000/64 Hitachi | 64 | 1999 | 449 | 512 |
| 386 | Washington University United States | BladeCenter Cluster Xeon 2.8 GHz, Gig-Ethernet IBM | 168 | 2003 | 448.194 | 940.8 |
| 387 | Washington University, Genome Sequencing Center United States | BladeCenter Cluster Xeon 2.8 GHz, Gig-Ethernet IBM | 168 | 2003 | 448.194 | 940.8 |
| 388 | Forschungszentrum Juelich (FZJ) Germany | T3E1200 Cray Inc. | 540 | 1999 | 447 | 648 |
| 389 | Government United States | T3E1200 Cray Inc. | 540 | 2001 | 447 | 648 |
| 390 | Government United States | T3E1200 Cray Inc. | 540 | 1998 | 447 | 648 |
| 391 | Government United States | T3E1200 Cray Inc. | 540 | 1999 | 447 | 648 |
| 392 | Financial Institution Hong Kong | SP Power3 375 MHz IBM | 424 | 2000 | 441 | 636 |
| 393 | University of North Carolina United States | xSeries Cluster Xeon 2.8/2.4 GHz - Gig-Ethernet IBM | 224 | 2003 | 439.3 | 1209.6 |
| 394 | SberBank Russia | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 256 | 2003 | 438.6 | 768 |
| 395 | Petroleum Company (A) United States | xSeries Cluster Xeon 2.4 GHz - Gig-E IBM | 260 | 2003 | 437.733 | 1248 |
| 396 | IBM United States | pSeries 655 Turbo 1.5 Ghz GigEth IBM | 128 | 2003 | 434.133 | 768 |
| 397 | Singapore Airlines Limited Singapore | pSeries 690 Turbo 1.5 Ghz GigEth IBM | 128 | 2003 | 434.133 | 768 |
| 398 | Belgacom Belgium | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 256 | 2003 | 432.6 | 768 |
| 399 | Government United Kingdom | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 256 | 2002 | 432.6 | 768 |
| 400 | Government United Kingdom | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 256 | 2002 | 432.6 | 768 |
| 401 | Sprint PCS United States | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 256 | 2002 | 432.6 | 768 |
| 402 | Government United States | pSeries 690 Turbo 1.3GHz GigEth IBM | 176 | 2002 | 430 | 915.2 |
| 403 | Safelite Glass United States | pSeries 690 Turbo 1.3GHz GigEth IBM | 176 | 2003 | 430 | 915.2 |
| 404 | US Defense United States | pSeries 690 Turbo 1.3GHz GigEth IBM | 176 | 2003 | 430 | 915.2 |
| 405 | United Institute of Informatics Problems Belarus | SKIF K-500 - Pentium4 Xeon 2.8 GHz, SCI 3D Self-made | 128 | 2003 | 423.6 | 716.8 |
| 406 | Center for Theoretical Biological Physics/UCSD United States | PowerEdge 2650, 2.8 GHz, Gig Ethernet, Rocks Dell | 160 | 2003 | 423 | 896 |
| 407 | Government Canada | Cray X1 Cray Inc. | 36 | 2003 | 422.1 | 460.8 |
| 408 | Government United States | Cray X1 Cray Inc. | 36 | 2003 | 422.1 | 460.8 |
| 409 | AG Edwards United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 421 | 672 |
| 410 | BMW AG Germany | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 421 | 672 |
| 411 | BMW AG Germany | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 421 | 672 |
| 412 | BellSouth United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2002 | 421 | 672 |
| 413 | Citibank Singapore | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 421 | 672 |
| 414 | Energy Company (A) Italy | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2002 | 421 | 672 |
| 415 | HP International Bank PLC Netherlands | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 421 | 672 |
| 416 | Kone Belgium | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 421 | 672 |
| 417 | Netsiel S.P.A. Italy | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2002 | 421 | 672 |
| 418 | OverWrite United Kingdom | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 421 | 672 |
| 419 | Telecom Italia Italy | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2002 | 421 | 672 |
| 420 | Telecom Italia Italy | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 421 | 672 |
| 421 | Verizon SCell United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2002 | 421 | 672 |
| 422 | Verizon SCell United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2002 | 421 | 672 |
| 423 | YEJI Information Technology Korea, South | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 421 | 672 |
| 424 | Defense Sweden | HPC 4500 400 MHz Cluster Sun Microsystems | 896 | 1999 | 420.44 | 716.8 |
| 425 | Service Provider United States | HPC 4500 400 MHz Cluster Sun Microsystems | 896 | 2000 | 420.44 | 716.8 |
| 426 | Service Provider United States | HPC 4500 400 MHz Cluster Sun Microsystems | 896 | 2000 | 420.44 | 716.8 |
| 427 | Sun United States | HPC 4500 400 MHz Cluster Sun Microsystems | 896 | 2000 | 420.44 | 716.8 |
| 428 | Accenture United Kingdom | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 418.1 | 672 |
| 429 | Amdocs United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 418.1 | 672 |
| 430 | Einstein Tec. Ind. Taiwan | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 418.1 | 672 |
| 431 | Government United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 418.1 | 672 |
| 432 | Government United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 418.1 | 672 |
| 433 | Huapu Information Technology China | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 418.1 | 672 |
| 434 | Hutchison Telecom Hong Kong | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 418.1 | 672 |
| 435 | Korean Bank Korea, South | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 418.1 | 672 |
| 436 | Logical Networks United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 418.1 | 672 |
| 437 | SK Global Korea, South | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 418.1 | 672 |
| 438 | Volvo Sweden | xSeries Cluster Xeon 3.06 GHz - Gig-E IBM | 153 | 2003 | 415.721 | 936.36 |
| 439 | E*Trade United States | xSeries Cluster Xeon 2.8 GHz - Gig-E IBM | 152 | 2003 | 413.556 | 851.2 |
| 440 | Amdocs United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 412.7 | 672 |
| 441 | Digital China Ltd. China | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 412.7 | 672 |
| 442 | Energy Company (B) Netherlands | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 412.7 | 672 |
| 443 | Hitachi IPD Jigyobu (SP-OEM) Japan | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 412.7 | 672 |
| 444 | Hitachi IPD Jigyobu (SP-OEM) Japan | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 412.7 | 672 |
| 445 | IB Solution France | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 412.7 | 672 |
| 446 | IT Telecom S.P.A. Italy | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 412.7 | 672 |
| 447 | Morse Computer United Kingdom | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 412.7 | 672 |
| 448 | Nike United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 412.7 | 672 |
| 449 | Northrop Grumman United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 412.7 | 672 |
| 450 | OverWrite United Kingdom | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 412.7 | 672 |
| 451 | Telecom Italia Mobile Italy | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 412.7 | 672 |
| 452 | Voicestream Wireless United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2002 | 412.7 | 672 |
| 453 | Yuan Rong Development China | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 412.7 | 672 |
| 454 | AT&T Wireless United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 455 | Airtel Movil S.A. Spain | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 456 | Algol Products Italy | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 457 | Amdocs United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 458 | Computer Design & Integra United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 459 | EDS United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 460 | Eurotel Praha Czech Republic | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 461 | GNT Finland Oy Finland | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 462 | Generalitad Spain | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 463 | Global Value Services S.P.A. Italy | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 464 | Goodyear - Technical Center Luxembourg | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 465 | Government France | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 466 | Government France | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 467 | HP Netherlands | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 468 | HP Germany | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 469 | Infineon Germany | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 470 | Johnson & Johnson United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 471 | Lufthansa Infratec GmbH Germany | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 472 | Magirus International Germany | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 473 | Maryville Data Systems United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 474 | NACF Korea, South | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 475 | New Zealand Dairy Board New Zealand | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 476 | Nokia Oy Finland | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 477 | PT Communications Portugal | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 478 | Qwest United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 479 | Samsung CARD Korea, South | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 480 | Samsung Capital Korea, South | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 481 | Sonofon A/S Denmark | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 482 | Telecom Italia Mobile Italy | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 483 | Telkom SA South Africa | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 484 | Verizon United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 485 | Vodafone United Kingdom | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 486 | Vodafone Ireland | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 487 | Zungwon Korea, South | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 488 | Gesellschaft fuer wissenschaftliche Datenverarbeitung Germany | PowerEdge 2650 3.06 GHz, Scali Dell | 108 | 2003 | 407 | 660.96 |
| 489 | Centre Informatique National (CINES) France | ORIGIN 3000 500 MHz SGI | 512 | 2002 | 405.6 | 512 |
| 490 | Fleet Numerical Meteorology and Oceanography Center United States | ORIGIN 3000 500 MHz SGI | 512 | 2001 | 405.6 | 512 |
| 491 | Government United States | ORIGIN 3000 500 MHz SGI | 512 | 2002 | 405.6 | 512 |
| 492 | Kyoto University, Institute for Chemical Research Japan | ORIGIN 3000 500 MHz SGI | 512 | 2002 | 405.6 | 512 |
| 493 | Los Alamos National Laboratory United States | ORIGIN 3000 500 MHz SGI | 512 | 2002 | 405.6 | 512 |
| 494 | Manufacturing Company United States | ORIGIN 3000 500 MHz SGI | 512 | 2002 | 405.6 | 512 |
| 495 | SARA (Stichting Academisch Rekencentrum) Netherlands | ORIGIN 3000 500 MHz SGI | 512 | 2000 | 405.6 | 512 |
| 496 | SARA (Stichting Academisch Rekencentrum) Netherlands | ORIGIN 3000 500 MHz SGI | 512 | 2000 | 405.6 | 512 |
| 497 | McGill University Canada | Athlon 1.6 GHz, Myrinet Self-made | 240 | 2003 | 403.6 | 768 |
| 498 | MTU Aero Engines Germany | PowerEdge 2650 Cluster P4 Xeon 2.4 GHz - Myrinet Dell | 128 | 2003 | 403.4 | 614.4 |
| 499 | Shell Malaysia | xSeries Cluster Xeon 2.4 GHz - Gig-E IBM | 256 | 2003 | 402.5 | 1228.8 |
| 500 | ShengriLi China | xSeries Cluster Xeon 2.4 GHz - Gig-E IBM | 256 | 2003 | 402.5 | 1228.8 |