| Rank | Site | Computer | Cores | Year | Rmax | Rpeak | | 201 | Umea University / HPC2N Sweden | AMD 1.66 GHz - SCI 3D-torus Self-made | 240 | 2002 | 481 | 800 |
| 202 | Centrica Plc United Kingdom | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 224 | 2002 | 479.5 | 784 |
| 203 | Universitaet Stuttgart, ITB Germany | BioCORTEX AMD 1.533 GHz - Myrinet Self-made | 256 | 2003 | 478.4 | 784.9 |
| 204 | Petroleum Company (B) United States | xSeries Cluster Xeon 2.4 GHz - Gig-E IBM | 392 | 2003 | 475.6 | 1881.6 |
| 205 | IN2P3 France | xSeries Cluster Xeon 2.4 GHz - Gig-E IBM | 384 | 2003 | 471.3 | 1843.2 |
| 206 | PDO Oman | xSeries Cluster Xeon 2.4 GHz - Gig-E IBM | 384 | 2003 | 471.3 | 1843.2 |
| 207 | Hewlett-Packard United States | SuperDome 750 MHz/HyperFabric Hewlett-Packard | 256 | 2002 | 470.9 | 768 |
| 208 | Lawrence Livermore National Laboratory United States | ASCI Blue-Pacific CTR, IBM SP 604e IBM | 1344 | 1998 | 468.2 | 892.4 |
| 209 | Cambridge University United Kingdom | Fire 15K 1.05 GHz Sun Microsystems | 300 | 2002 | 468.1 | 630 |
| 210 | Cambridge University United Kingdom | Fire 15K 1.05 GHz Sun Microsystems | 300 | 2002 | 468.1 | 630 |
| 211 | Cambridge University United Kingdom | Fire 15K 1.05 GHz Sun Microsystems | 300 | 2002 | 468.1 | 630 |
| 212 | IKON United States | pSeries 690 Turbo 1.3GHz IBM | 160 | 2002 | 468 | 832 |
| 213 | Government United States | ORIGIN 3000 600 MHz SGI | 512 | 2002 | 466 | 614.4 |
| 214 | Government United States | ORIGIN 3000 600 MHz SGI | 512 | 2002 | 466 | 614.4 |
| 215 | Government United States | ORIGIN 3000 600 MHz SGI | 512 | 2002 | 466 | 614.4 |
| 216 | Government United States | ORIGIN 3000 600 MHz SGI | 512 | 2002 | 466 | 614.4 |
| 217 | NOAA/Geophysical Fluid Dynamics Laboratory (GFDL) United States | ORIGIN 3000 600 MHz SGI | 512 | 2001 | 466 | 614.4 |
| 218 | NOAA/Geophysical Fluid Dynamics Laboratory (GFDL) United States | ORIGIN 3000 600 MHz SGI | 512 | 2003 | 466 | 614.4 |
| 219 | NOAA/Geophysical Fluid Dynamics Laboratory (GFDL) United States | ORIGIN 3000 600 MHz SGI | 512 | 2001 | 466 | 614.4 |
| 220 | NOAA/Geophysical Fluid Dynamics Laboratory (GFDL) United States | ORIGIN 3000 600 MHz SGI | 512 | 2003 | 466 | 614.4 |
| 221 | Norwegian University of Science and Technology Norway | ORIGIN 3000 600 MHz SGI | 512 | 2002 | 466 | 614.4 |
| 222 | IBM United States | xSeries Cluster Xeon 2.8 GHz - Myrinet IBM | 128 | 2003 | 450 | 716.8 |
| 223 | BMW AG Germany | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 256 | 2002 | 449.4 | 768 |
| 224 | Centrica Plc United Kingdom | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 256 | 2002 | 449.4 | 768 |
| 225 | Hewlett-Packard United States | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 256 | 2002 | 449.4 | 768 |
| 226 | Tsukuba Advanced Computing Center - TACC/AIST Japan | SR8000/64 Hitachi | 64 | 1999 | 449 | 512 |
| 227 | Forschungszentrum Juelich (FZJ) Germany | T3E1200 Cray Inc. | 540 | 1999 | 447 | 648 |
| 228 | Government United States | T3E1200 Cray Inc. | 540 | 2001 | 447 | 648 |
| 229 | Government United States | T3E1200 Cray Inc. | 540 | 1998 | 447 | 648 |
| 230 | Government United States | T3E1200 Cray Inc. | 540 | 1999 | 447 | 648 |
| 231 | Compagnie Generale de Geophysique (CGG) Malaysia | xSeries Cluster Xeon 2.4 GHz - Gig-E IBM | 332 | 2003 | 443.3 | 1593.6 |
| 232 | Financial Institution Hong Kong | SP Power3 375 MHz IBM | 424 | 2000 | 441 | 636 |
| 233 | Government United Kingdom | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 256 | 2002 | 432.6 | 768 |
| 234 | Government United Kingdom | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 256 | 2002 | 432.6 | 768 |
| 235 | Sprint PCS United States | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 256 | 2002 | 432.6 | 768 |
| 236 | University of Kentucky United States | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 224 | 2001 | 431.7 | 672 |
| 237 | Government United States | pSeries 690 Turbo 1.3GHz GigEth IBM | 176 | 2002 | 430 | 915.2 |
| 238 | Commissariat a l'Energie Atomique (CEA) France | AlphaServer SC40, 833 MHz Hewlett-Packard | 318 | 2000 | 427.4 | 529.8 |
| 239 | Scalable Systems Group, Dell Computer United States | PowerEdge 2650 Cluster P4 Xeon 2.4 GHz - Myrinet Dell | 128 | 2002 | 421.9 | 614.4 |
| 240 | AG Edwards United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 421 | 672 |
| 241 | BMW AG Germany | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 421 | 672 |
| 242 | BMW AG Germany | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 421 | 672 |
| 243 | BellSouth United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2002 | 421 | 672 |
| 244 | Energy Company (A) Italy | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2002 | 421 | 672 |
| 245 | Netsiel S.P.A. Italy | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2002 | 421 | 672 |
| 246 | Telecom Italia Italy | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2002 | 421 | 672 |
| 247 | Telecom Italia Italy | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 421 | 672 |
| 248 | Verizon SCell United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2002 | 421 | 672 |
| 249 | Verizon SCell United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2002 | 421 | 672 |
| 250 | Defense Sweden | HPC 4500 400 MHz Cluster Sun Microsystems | 896 | 1999 | 420.44 | 716.8 |
| 251 | Service Provider United States | HPC 4500 400 MHz Cluster Sun Microsystems | 896 | 2000 | 420.44 | 716.8 |
| 252 | Service Provider United States | HPC 4500 400 MHz Cluster Sun Microsystems | 896 | 2000 | 420.44 | 716.8 |
| 253 | Sun United States | HPC 4500 400 MHz Cluster Sun Microsystems | 896 | 2000 | 420.44 | 716.8 |
| 254 | Amdocs United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 418.1 | 672 |
| 255 | Einstein Tec. Ind. Taiwan | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 418.1 | 672 |
| 256 | Forsythe & Mcarthur United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 418.1 | 672 |
| 257 | Korean Bank Korea, South | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 418.1 | 672 |
| 258 | Logical Networks United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 418.1 | 672 |
| 259 | IT Telecom S.P.A. Italy | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 412.7 | 672 |
| 260 | Nike United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 412.7 | 672 |
| 261 | OverWrite United Kingdom | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 412.7 | 672 |
| 262 | Voicestream Wireless United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2002 | 412.7 | 672 |
| 263 | NOAA/Geophysical Fluid Dynamics Laboratory (GFDL) United States | ORIGIN 3000 600 MHz SGI | 448 | 2001 | 410.8 | 537.6 |
| 264 | AT&T Wireless United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 265 | Airtel Movil S.A. Spain | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 266 | Computer Design & Integra United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 267 | GNT Finland Oy Finland | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 268 | Johnson & Johnson United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 269 | NACF Korea, South | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 270 | New Zealand Dairy Board New Zealand | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 271 | Qwest United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 272 | Samsung CARD Korea, South | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 273 | Samsung Capital Korea, South | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 274 | Sonofon A/S Denmark | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 275 | Verizon United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 276 | Youngwoo Korea, South | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 408.2 | 672 |
| 277 | Centre Informatique National (CINES) France | ORIGIN 3000 500 MHz SGI | 512 | 2002 | 405.6 | 512 |
| 278 | Fleet Numerical Meteorology and Oceanography Center United States | ORIGIN 3000 500 MHz SGI | 512 | 2001 | 405.6 | 512 |
| 279 | Government United States | ORIGIN 3000 500 MHz SGI | 512 | 2002 | 405.6 | 512 |
| 280 | Kyoto University, Institute for Chemical Research Japan | ORIGIN 3000 500 MHz SGI | 512 | 2002 | 405.6 | 512 |
| 281 | Los Alamos National Laboratory United States | ORIGIN 3000 500 MHz SGI | 512 | 2002 | 405.6 | 512 |
| 282 | Manufacturing Company United States | ORIGIN 3000 500 MHz SGI | 512 | 2002 | 405.6 | 512 |
| 283 | SARA (Stichting Academisch Rekencentrum) Netherlands | ORIGIN 3000 500 MHz SGI | 512 | 2000 | 405.6 | 512 |
| 284 | SARA (Stichting Academisch Rekencentrum) Netherlands | ORIGIN 3000 500 MHz SGI | 512 | 2000 | 405.6 | 512 |
| 285 | Petroleum Company (A) United States | xSeries Cluster Xeon 2.4 GHz - Gig-E IBM | 260 | 2003 | 404.6 | 1248 |
| 286 | Government United States | Cray X1 Cray Inc. | 36 | 2003 | 404.3 | 460.8 |
| 287 | Government Canada | Cray X1 Cray Inc. | 36 | 2003 | 404.3 | 460.8 |
| 288 | MTU Aero Engines Germany | PowerEdge 2650 Cluster P4 Xeon 2.4 GHz - Myrinet Dell | 128 | 2003 | 403.4 | 614.4 |
| 289 | Shell Malaysia | xSeries Cluster Xeon 2.4 GHz - Gig-E IBM | 256 | 2003 | 402.5 | 1228.8 |
| 290 | ShengriLi China | xSeries Cluster Xeon 2.4 GHz - Gig-E IBM | 256 | 2003 | 402.5 | 1228.8 |
| 291 | Sinopec China | xSeries Cluster Xeon 2.4 GHz - Gig-E IBM | 256 | 2003 | 402.5 | 1228.8 |
| 292 | I2 Technologies Inc. United States | pSeries 690 1.1GHz IBM | 160 | 2002 | 396 | 704 |
| 293 | EDINFOR Portugal | SP Power3 375 MHz IBM | 380 | 2002 | 393 | 570 |
| 294 | Fraunhofer ITWM Germany | Cluster P4 Xeon 2.4 GHz - Myrinet Linux Networx | 128 | 2003 | 390.2 | 614.4 |
| 295 | Capital One Services United States | pSeries 690 Turbo 1.3GHz GigEth IBM | 160 | 2002 | 389 | 832 |
| 296 | Tokyo University of Science Japan | pSeries 690 Turbo 1.3GHz GigEth IBM | 160 | 2002 | 389 | 832 |
| 297 | Exploration & Development Res. Inst. of Daqing Oil Field China | DeepComp 1800 - P4 Xeon 2.4 GHz - Giganet lenovo | 256 | 2003 | 385.4 | 1228 |
| 298 | HPCCC, Hong Kong Baptist University Hong Kong | PowerEdge 2650 Cluster P4 Xeon 2.8 GHz - GigE Dell | 128 | 2003 | 383.2 | 716.8 |
| 299 | Naval Research Laboratory (NRL) United States | Altix 3700 1 GHz SGI | 128 | 2003 | 378.9 | 512 |
| 300 | Cambridge University - COSMOS United Kingdom | Altix 3700 900 MHz SGI | 128 | 2003 | 378.9 | 460.8 |
| 301 | Government Denmark | Altix 3700 900 MHz SGI | 128 | 2003 | 378.9 | 460.8 |
| 302 | Johannes Kepler University of Linz Austria | Altix 3700 900 MHz SGI | 128 | 2003 | 378.9 | 460.8 |
| 303 | Silicon Graphics United States | Altix 3700 900 MHz SGI | 128 | 2003 | 378.9 | 460.8 |
| 304 | Washington University United States | Altix 3700 900 MHz SGI | 128 | 2003 | 378.9 | 460.8 |
| 305 | Bell Canada Canada | SuperDome/HyperPlex Hewlett-Packard | 256 | 2001 | 378.6 | 563.2 |
| 306 | Brasil Telecom Brazil | SuperDome/HyperPlex Hewlett-Packard | 256 | 2001 | 378.6 | 563.2 |
| 307 | Government United States | SuperDome/HyperPlex Hewlett-Packard | 256 | 2001 | 378.6 | 563.2 |
| 308 | Government United States | SuperDome/HyperPlex Hewlett-Packard | 256 | 2001 | 378.6 | 563.2 |
| 309 | KISTI Supercomputing Center Korea, South | pSeries 690 Turbo 1.3GHz IBM | 128 | 2002 | 378.2 | 665.6 |
| 310 | Logicon United States | pSeries 690 Turbo 1.3GHz IBM | 128 | 2002 | 378.2 | 665.6 |
| 311 | SARA/IC3A (Stichting Academisch Rekencentrum) Netherlands | pSeries 690 Turbo 1.3GHz IBM | 128 | 2002 | 378.2 | 665.6 |
| 312 | Center for Computational Science, University of Tsukuba Japan | CP-PACS/2048 Hitachi/Tsukuba | 2048 | 1996 | 368.2 | 614.4 |
| 313 | Geoscience (C) United Kingdom | Netfinity Cluster PIII 1.4 GHz - Eth IBM | 1280 | 2002 | 366 | 1792 |
| 314 | Mississippi State University United States | Netfinity Cluster PIII 1/1.26 GHz - Eth IBM | 1024 | 2002 | 366 | 1144 |
| 315 | Regionales Rechenzentrum Erlangen (RRZE) Germany | Linux Cluster Xeon 2.6 GHz - GigE Transtec AG | 150 | 2003 | 365 | 780 |
| 316 | Core Labs United States | PowerEdge 2650 Cluster P4 Xeon 2.8 GHz - Fast Ethernet Dell | 770 | 2003 | 363.4 | 4312 |
| 317 | Stanford University/Biomedical Computational Facility United States | PowerEdge 2650 Cluster P4 Xeon 2.8 GHz - Fast Ethernet Dell | 576 | 2003 | 363.4 | 3225.6 |
| 318 | Amdocs United States | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 361.4 | 576 |
| 319 | Amdocs United States | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 361.4 | 576 |
| 320 | BMW AG Germany | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 192 | 2002 | 361.4 | 576 |
| 321 | BMW AG Germany | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 192 | 2002 | 361.4 | 576 |
| 322 | BMW AG Germany | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 192 | 2002 | 361.4 | 576 |
| 323 | Centrica Plc United Kingdom | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 192 | 2002 | 361.4 | 576 |
| 324 | DaimlerChrysler United States | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 192 | 2002 | 361.4 | 576 |
| 325 | Sprint PCS United States | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 192 | 2002 | 361.4 | 576 |
| 326 | Verizon United States | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 192 | 2002 | 361.4 | 576 |
| 327 | WIND Telecom S.P.A. Italy | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 192 | 2002 | 361.4 | 576 |
| 328 | America On Line (AOL) United States | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 192 | 2002 | 358.5 | 576 |
| 329 | BMW AG Germany | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 192 | 2002 | 358.5 | 576 |
| 330 | France Telecom France | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 192 | 2001 | 358.5 | 576 |
| 331 | Nike United States | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 192 | 2003 | 358.5 | 576 |
| 332 | Omnitel Pronto Italia Italy | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 192 | 2002 | 358.5 | 576 |
| 333 | Transco PLC United Kingdom | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 192 | 2002 | 358.5 | 576 |
| 334 | Transco PLC United Kingdom | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 192 | 2002 | 358.5 | 576 |
| 335 | Universitaet Aachen/RWTH Germany | Fire 15K Sun Microsystems | 288 | 2002 | 357.1 | 518.4 |
| 336 | Magirus International Germany | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 160 | 2002 | 356.1 | 560 |
| 337 | Ohio Supercomputer Center United States | OSC BALE Cluster - AMD Athlon 1.4/1.53 GHz - Myrinet Self-made | 252 | 2003 | 355.7 | 744.2 |
| 338 | Systems Research Group, University of Hong Kong Hong Kong | Gideon 300 Cluster P4 2 GHz Fast Ethernet Self-made | 300 | 2002 | 355.5 | 600 |
| 339 | Max-Planck-Gesellschaft MPI/IPP Germany | T3E Cray Inc. | 812 | 1997 | 355 | 487.2 |
| 340 | BMW AG Germany | rp8400 750 MHz/HyperPlex Hewlett-Packard | 192 | 2001 | 351.4 | 576 |
| 341 | Advanced Info Service Thailand | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 160 | 2002 | 351.1 | 560 |
| 342 | EDS United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 160 | 2002 | 351.1 | 560 |
| 343 | FBI United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 160 | 2002 | 351.1 | 560 |
| 344 | General Motors United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 160 | 2002 | 351.1 | 560 |
| 345 | IB Solution France | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 160 | 2003 | 351.1 | 560 |
| 346 | SK Global Korea, South | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 160 | 2003 | 351.1 | 560 |
| 347 | Samsung Fire & Insurance Korea, South | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 160 | 2003 | 351.1 | 560 |
| 348 | NRI for Earth Science and Disaster (NIED) Japan | VPP5000/38 Fujitsu | 38 | 2002 | 351.1 | 364.8 |
| 349 | NCSA United States | Cluster Platform 6000 rx2600, Itanium2 900 MHz, Infiniband Hewlett-Packard | 128 | 2003 | 351 | 460.8 |
| 350 | Hewlett-Packard United States | Cluster Platform 6000 rx2600 Itanium2 900 MHz Cluster - Quadrics Hewlett-Packard | 118 | 2003 | 350.7 | 424.8 |
| 351 | Leibniz Rechenzentrum Germany | Linux Cluster 105x(P4 3060) Megware | 105 | 2003 | 350 | 642.6 |
| 352 | Japan Marine Science and Technology Japan | AlphaServer SC40, 833 MHz Hewlett-Packard | 256 | 2001 | 349.9 | 426.5 |
| 353 | Los Alamos National Laboratory United States | AlphaServer SC40, 833 MHz Hewlett-Packard | 256 | 2001 | 349.9 | 426.5 |
| 354 | Boeing Shared Services United States | Evolocity (TM) Xeon 2.4 GHz - Myrinet Linux Networx | 128 | 2003 | 347 | 614.4 |
| 355 | SberBank Russia | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 192 | 2001 | 345 | 576 |
| 356 | Center for Astrophysics and Supercomputing, Swinburne UT Australia | PowerEdge 2650/Prec. Workst. 530 Cluster P4 Xeon 2.2/2.0 GHz - GigE Dell | 180 | 2002 | 343.4 | 768 |
| 357 | HWW/Universitaet Stuttgart Germany | T3E900 Cray Inc. | 540 | 1996 | 341 | 486 |
| 358 | Pittsburgh Supercomputing Center United States | T3E900 Cray Inc. | 540 | 1998 | 341 | 486 |
| 359 | ZIB/Konrad Zuse-Zentrum fuer Informationstechnik Germany | T3E900 Cray Inc. | 540 | 1999 | 341 | 486 |
| 360 | Hewlett-Packard United States | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 64 | 2003 | 335 | 384 |
| 361 | Hewlett-Packard United States | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 64 | 2003 | 335 | 384 |
| 362 | Honda Research and Development Company Japan | Pentium 4 Cluster 2.53/2.4/2.0 GHz - Giganet Self-made | 168 | 2002 | 333.8 | 738.7 |
| 363 | Bank of America United States | pSeries 690 Turbo 1.3GHz IBM | 112 | 2002 | 330 | 582.4 |
| 364 | EDS United States | pSeries 690 Turbo 1.3GHz IBM | 112 | 2002 | 330 | 582.4 |
| 365 | University of Minnesota/Supercomputing Institute United States | SP Power3 375 MHz IBM | 322 | 2000 | 330 | 483 |
| 366 | University at Buffalo, SUNY, Center for Computational Res. United States | PowerEdge 2650 Cluster P4 Xeon 2.4 GHz - GigE Dell | 200 | 2002 | 327.9 | 960 |
| 367 | Maui High-Performance Computing Center (MHPCC) United States | SP Power3 375 MHz IBM | 320 | 2000 | 327 | 480 |
| 368 | Petroleum Company (G) Saudia Arabia | Netfinity Cluster PIII 1.13 GHz - Eth IBM | 2048 | 2001 | 326 | 2314 |
| 369 | WesternGeco United States | Netfinity Cluster PIII 1.13 GHz - Eth IBM | 1040 | 2002 | 326 | 1175 |
| 370 | Compagnie Generale de Geophysique (CGG) United Kingdom | Netfinity Cluster PIII 1.13 GHz - Eth IBM | 1024 | 2002 | 326 | 1157 |
| 371 | Compagnie Generale de Geophysique (CGG) United Kingdom | Netfinity Cluster PIII 1.13 GHz - Eth IBM | 1024 | 2002 | 326 | 1157 |
| 372 | Geoscience (C) Egypt | Netfinity Cluster PIII 1.13 GHz - Eth IBM | 1024 | 2001 | 326 | 1157 |
| 373 | Shell Netherlands | Netfinity Cluster PIII 1.13 GHz - Eth IBM | 1024 | 2002 | 326 | 1157 |
| 374 | Pennsylvania State University, CSE United States | AMD Athlon MP 1.8 GHz - Appro nodes/Dolphin 2D SCI Self-made | 162 | 2003 | 323.9 | 583.2 |
| 375 | Doshisha University Japan | Xenia / IBM Intellistation Xeon 2.4 GHz Myrinet Self-made | 128 | 2002 | 323.7 | 614.4 |
| 376 | Cardiff University United Kingdom | P4 Xeon 2.2/2.4 GHz - Wulfkit SCI OCF | 144 | 2002 | 323.3 | 648 |
| 377 | High Performance Computing Virtual Laboratory Canada | Fire 15k/Fire 6800/Sun Fire Link Sun Microsystems | 336 | 2002 | 321 | 633 |
| 378 | Institute of Physical and Chemical Res. (RIKEN) Japan | VPP700/160E Fujitsu | 160 | 1999 | 319 | 384 |
| 379 | Oak Ridge National Laboratory United States | Cray X1 Cray Inc. | 28 | 2003 | 318.1 | 358.4 |
| 380 | DaimlerChrysler United States | xSeries Cluster Xeon 2.2 GHz - Gig-E IBM | 216 | 2003 | 318 | 950.4 |
| 381 | CSAR at the University of Manchester United Kingdom | ORIGIN 3000 400 MHz SGI | 512 | 2001 | 315.5 | 409.6 |
| 382 | ERDC MSRC United States | ORIGIN 3000 400 MHz SGI | 512 | 2001 | 315.5 | 409.6 |
| 383 | Energy Company (C) United States | ORIGIN 3000 400 MHz SGI | 512 | 2002 | 315.5 | 409.6 |
| 384 | NASA/Ames Research Center/NAS United States | ORIGIN 3000 400 MHz SGI | 512 | 2001 | 315.5 | 409.6 |
| 385 | NASA/Goddard Space Flight Center United States | ORIGIN 3000 400 MHz SGI | 512 | 2001 | 315.5 | 409.6 |
| 386 | Silicon Graphics United States | ORIGIN 3000 400 MHz SGI | 512 | 2001 | 315.5 | 409.6 |
| 387 | US Army Research Laboratory (ARL) United States | ORIGIN 3000 400 MHz SGI | 512 | 2000 | 315.5 | 409.6 |
| 388 | Verizon United States | pSeries 690 1.1GHz GigEth IBM | 160 | 2002 | 315 | 704 |
| 389 | Communications Res. Lab. (CRL) Japan | SX-6/40M5 NEC | 40 | 2002 | 311.7 | 320 |
| 390 | University of Seoul - Seoul GRID Center Korea, South | P4 Cluster 2.0 GHz - GigE Self-made | 224 | 2003 | 310.4 | 448 |
| 391 | Fidelity Investments United States | pSeries 690 Turbo 1.3GHz IBM | 104 | 2002 | 308 | 540.8 |
| 392 | ERDC MSRC United States | SP Power3 222 MHz IBM | 512 | 2000 | 307.6 | 454.6 |
| 393 | Government United States | pSeries 690 Turbo 1.3GHz GigEth IBM | 128 | 2002 | 306.4 | 665.6 |
| 394 | Government United States | ORIGIN 3000 500 MHz SGI | 384 | 2002 | 306.3 | 384 |
| 395 | Manufacturing Company United States | ORIGIN 3000 500 MHz SGI | 384 | 2002 | 306.3 | 384 |
| 396 | NRI for Earth Science and Disaster (NIED) Japan | ORIGIN 3000 500 MHz SGI | 384 | 2002 | 306.3 | 384 |
| 397 | Norwegian University of Science and Technology Norway | ORIGIN 3000 500 MHz SGI | 384 | 2001 | 306.3 | 384 |
| 398 | CNRS/IDRIS France | SX-5/40M3 NEC | 40 | 2000 | 303 | 320 |
| 399 | University of California - Santa Cruz United States | Upsand - RS1100 AMD 1.4 GHz - Dolphin Verari Systems | 264 | 2002 | 301.8 | 739.2 |
| 400 | NASA/Ames Research Center/NAS United States | ORIGIN 2000 400 MHz SGI | 512 | 2000 | 300.2 | 409.6 |
| 401 | Nanyang Technological University - BIRC Singapore | AlphaServer SC45, 1 GHz Hewlett-Packard | 176 | 2002 | 299.7 | 352 |
| 402 | Ahold United States | pSeries 690 Turbo 1.3GHz GigEth IBM | 124 | 2002 | 299 | 644.8 |
| 403 | Agilent United States | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 144 | 2001 | 296.2 | 432 |
| 404 | Central Research Institute of Electric Power Industry/CRIEPI Japan | VPP5000/32 Fujitsu | 32 | 2000 | 296.1 | 307.2 |
| 405 | Boeing Shared Services United States | Evolocity (TM) Xeon 2.4 GHz - Fast Ethernet Linux Networx | 240 | 2003 | 295.9 | 1152 |
| 406 | PGS United States | SP Power3 375 MHz IBM | 290 | 2001 | 295 | 435 |
| 407 | Citibank United States | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 160 | 2002 | 294.3 | 480 |
| 408 | Commissariat a l'Energie Atomique (CEA) France | AlphaServer SC ES40/EV67 Hewlett-Packard | 292 | 2001 | 289.8 | 389.5 |
| 409 | Geoscience (C) United Kingdom | Netfinity Cluster PIII 1 GHz - Eth IBM | 1040 | 2001 | 289 | 1040 |
| 410 | WesternGeco United States | Netfinity Cluster PIII 1 GHz - Eth IBM | 1040 | 2002 | 289 | 1040 |
| 411 | Compagnie Generale de Geophysique (CGG) United Kingdom | Netfinity Cluster PIII 1 GHz - Eth IBM | 1024 | 2001 | 289 | 1024 |
| 412 | Pemex Gas Mexico | Netfinity Cluster PIII 1 GHz - Eth IBM | 1024 | 2002 | 289 | 1024 |
| 413 | Shell Netherlands | Netfinity Cluster PIII 1 GHz - Eth IBM | 1024 | 2001 | 289 | 1024 |
| 414 | US Army Space and Missile Defense Command United States | SP Power3 375 MHz IBM | 284 | 2000 | 288 | 426 |
| 415 | BMW AG Germany | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 128 | 2002 | 286 | 448 |
| 416 | BMW AG Germany | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 128 | 2002 | 286 | 448 |
| 417 | Government United Kingdom | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 128 | 2002 | 286 | 448 |
| 418 | Government Germany | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 128 | 2003 | 286 | 448 |
| 419 | Marubeni Corp Japan | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 128 | 2002 | 286 | 448 |
| 420 | Maryville Data Systems United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 128 | 2002 | 286 | 448 |
| 421 | Samsung SDS Korea, South | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 128 | 2002 | 286 | 448 |
| 422 | T-Systems Spain | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 128 | 2003 | 286 | 448 |
| 423 | Caltech United States | TeraGrid Cluster Itanium 2 1 GHz - Myrinet IBM | 92 | 2003 | 286 | 368 |
| 424 | Meteo-France France | VPP5000/31 Fujitsu | 31 | 1999 | 286 | 297.6 |
| 425 | UCSD/Cal-IT^2/SDSC United States | COMPAS-ECCO meta cluster, PIII 1 GHz, Myrinet, Rocks IBM | 480 | 2002 | 285.9 | 480 |
| 426 | Adiva Computertechnologie GmbH Germany | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 128 | 2003 | 285.8 | 448 |
| 427 | BMW AG Germany | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 128 | 2003 | 285.8 | 448 |
| 428 | Cisco United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 128 | 2003 | 285.8 | 448 |
| 429 | Continental Teves AG Germany | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 128 | 2002 | 285.8 | 448 |
| 430 | DeTeCSM Germany | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 128 | 2002 | 285.8 | 448 |
| 431 | DeTeCSM Germany | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 128 | 2002 | 285.8 | 448 |
| 432 | GMAC United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 128 | 2002 | 285.8 | 448 |
| 433 | Hutchison Telecom Hong Kong | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 128 | 2003 | 285.8 | 448 |
| 434 | T-Systems Germany | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 128 | 2003 | 285.8 | 448 |
| 435 | Telecom Italia Mobile Italy | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 128 | 2002 | 285.8 | 448 |
| 436 | Maui High-Performance Computing Center (MHPCC) United States | Netfinity Cluster PIII 933 MHz - Myrinet IBM | 520 | 2001 | 285 | 485.16 |
| 437 | DM Data Denmark | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 128 | 2003 | 284.4 | 448 |
| 438 | Hitachi Japan | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 128 | 2003 | 284.4 | 448 |
| 439 | Samsung Fire & Insurance Korea, South | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 128 | 2003 | 284.4 | 448 |
| 440 | TTL Information Technology AG Germany | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 128 | 2003 | 284.4 | 448 |
| 441 | CSC (Center for Scientific Computing) Finland | T3E750 Cray Inc. | 540 | 2000 | 284 | 405 |
| 442 | Ford Motor Company United States | ORIGIN 3000 500 MHz SGI | 332 | 2002 | 282 | 332 |
| 443 | University of Notre Dame United States | BoB - Precision 530 Cluster - 1.7 GHz - GigEth Dell | 208 | 2002 | 280.5 | 707.2 |
| 444 | Fleet Numerical Meteorology and Oceanography Center United States | ORIGIN 3000 700 MHz SGI | 256 | 2003 | 279.9 | 358 |
| 445 | Government United States | ORIGIN 3000 700 MHz SGI | 256 | 2003 | 279.9 | 358 |
| 446 | Government United States | ORIGIN 3000 700 MHz SGI | 256 | 2003 | 279.9 | 358 |
| 447 | Silicon Graphics United States | ORIGIN 3000 700 MHz SGI | 256 | 2002 | 279.9 | 358 |
| 448 | University of Alberta Canada | ORIGIN 3000 700 MHz SGI | 256 | 2003 | 279.9 | 358 |
| 449 | Boston University United States | pSeries 690 Turbo 1.3GHz GigEth IBM | 112 | 2002 | 279 | 582.4 |
| 450 | Volkswagen Bank Germany | pSeries 690 Turbo 1.3GHz GigEth IBM | 112 | 2002 | 279 | 582.4 |
| 451 | Telkom SA South Africa | SuperDome/HyperPlex Hewlett-Packard | 192 | 2001 | 278.8 | 422.4 |
| 452 | Vodafone United Kingdom | SuperDome/HyperPlex Hewlett-Packard | 192 | 2001 | 278.8 | 422.4 |
| 453 | Texas Instruments France | xSeries Cluster Xeon 2.4 GHz - Gig-E IBM | 132 | 2003 | 278 | 633.6 |
| 454 | Avon Products United States | pSeries 690 1.1GHz GigEth IBM | 138 | 2002 | 277 | 607.2 |
| 455 | Institute for Molecular Science Japan | VPP5000/30 Fujitsu | 30 | 2000 | 277 | 288 |
| 456 | University of Alabama at Birmingham United States | xSeries Cluster Xeon 2.4 GHz - Gig-E IBM | 128 | 2003 | 274 | 614.4 |
| 457 | Bundesanstalt fuer Wasserbau Germany | ORIGIN 3000 600 MHz SGI | 288 | 2002 | 272.7 | 345.6 |
| 458 | Geoscience (C) Egypt | Netfinity Cluster PIII 933 MHz - Eth IBM | 1024 | 2002 | 269 | 955.3 |
| 459 | NCSA United States | ORIGIN 2000 195/250 MHz SGI | 1024 | 1998 | 264.9 | 327.68 |
| 460 | Oak Ridge National Laboratory United States | AlphaServer SC ES40/EV67 Hewlett-Packard | 256 | 2000 | 263.6 | 341.33 |
| 461 | Pittsburgh Supercomputing Center United States | AlphaServer SC ES40/EV67 Hewlett-Packard | 256 | 2000 | 263.6 | 341.33 |
| 462 | DeTeCSM Germany | SP Power3 375 MHz IBM | 260 | 2001 | 262 | 390 |
| 463 | Hewlett-Packard United States | rp8400 750 MHz/HyperFabric Hewlett-Packard | 128 | 2002 | 261.1 | 384 |
| 464 | Max-Planck-Gesellschaft MPI/IPP Germany | xSeries Cluster Xeon 2.4 GHz - Gig-E IBM | 116 | 2003 | 260.2 | 556.8 |
| 465 | Air Force Weather Agency United States | pSeries 690 1.1GHz IBM | 104 | 2003 | 260 | 457.6 |
| 466 | Purdue University United States | SP Power3 375 MHz IBM | 256 | 2000 | 257 | 384 |
| 467 | Scientific Supercomputing Center Karlsruhe Germany | SP Power3 375 MHz IBM | 256 | 2000 | 257 | 384 |
| 468 | University of Victoria Canada | xSeries Cluster Xeon 2.4 GHz - Gig-E IBM | 112 | 2003 | 255.6 | 537.6 |
| 469 | Meteorological Research Institute/JMA Japan | SR8000/36 Hitachi | 36 | 1999 | 255 | 288 |
| 470 | Hewlett-Packard United States | SuperDome 750 MHz/HyperFabric Hewlett-Packard | 128 | 2002 | 254.9 | 384 |
| 471 | National Institute for Space Research/CPTEC Brazil | SX-6/32M4 NEC | 32 | 2002 | 253.6 | 256 |
| 472 | United Kingdom Meteorological Office United Kingdom | SX-6/32M4 NEC | 32 | 2003 | 253.6 | 256 |
| 473 | BOUYGTEL France | pSeries 690 Turbo 1.3GHz GigEth IBM | 96 | 2002 | 253.2 | 499.2 |
| 474 | Boeing United States | pSeries 690 Turbo 1.3GHz GigEth IBM | 96 | 2002 | 253.2 | 499.2 |
| 475 | Hitachi Micro Systems United States | pSeries 690 Turbo 1.3GHz GigEth IBM | 96 | 2002 | 253.2 | 499.2 |
| 476 | Manufacturing Company United States | pSeries 690 Turbo 1.3GHz GigEth IBM | 96 | 2002 | 253.2 | 499.2 |
| 477 | National Association of Securities United States | pSeries 690 Turbo 1.3GHz GigEth IBM | 96 | 2002 | 253.2 | 499.2 |
| 478 | Technische Universitaet Darmstadt Germany | pSeries 690 Turbo 1.3GHz GigEth IBM | 96 | 2002 | 253.2 | 499.2 |
| 479 | University of Bergen Norway | pSeries 690 Turbo 1.3GHz GigEth IBM | 96 | 2002 | 253.2 | 499.2 |
| 480 | Chemical Company Germany | SP PC604e 332 MHz IBM | 716 | 2000 | 250 | 475.4 |
| 481 | Fermi National Accelerator Laboratory United States | P4 Xeon Cluster 2.0 GHz - Myrinet Self-made | 96 | 2003 | 246.7 | 384 |
| 482 | University of Melbourne Australia | xSeries Cluster Xeon 2.4 GHz - Gig-E IBM | 104 | 2003 | 246.4 | 499.2 |
| 483 | BMW AG Germany | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 128 | 2002 | 245.3 | 384 |
| 484 | Beijing Social Insurance China | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 128 | 2001 | 245.3 | 384 |
| 485 | Belgacom Belgium | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 128 | 2002 | 245.3 | 384 |
| 486 | Belgacom Belgium | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 128 | 2002 | 245.3 | 384 |
| 487 | EDS United Kingdom | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 128 | 2001 | 245.3 | 384 |
| 488 | France Telecom France | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 128 | 2001 | 245.3 | 384 |
| 489 | Netsiel S.P.A. Italy | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 128 | 2002 | 245.3 | 384 |
| 490 | debis Systemhaus Germany | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 128 | 2001 | 245.3 | 384 |
| 491 | ABN AMRO United Kingdom | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 128 | 2002 | 245.1 | 384 |
| 492 | Banca Sella Italy | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 128 | 2002 | 245.1 | 384 |
| 493 | EDS United Kingdom | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 128 | 2002 | 245.1 | 384 |
| 494 | Essent B.V. Netherlands | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 128 | 2002 | 245.1 | 384 |
| 495 | Hutchison H3G United Kingdom | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 128 | 2002 | 245.1 | 384 |
| 496 | IS Informationssysteme II Germany | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 128 | 2002 | 245.1 | 384 |
| 497 | Itellium Systems Germany | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 128 | 2001 | 245.1 | 384 |
| 498 | Magirus International Germany | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 128 | 2002 | 245.1 | 384 |
| 499 | Wachovia Corporation United States | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 128 | 2002 | 245.1 | 384 |
| 500 | Wachovia Corporation United States | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 128 | 2002 | 245.1 | 384 |