| Rank | Site | Computer | Cores | Year | Rmax | Rpeak | | 301 | GX Technology United States | xSeries Cluster Xeon 2.4 GHz - Gig-E IBM | 880 | 2003 | 1.58 | 4.22 |
| 302 | Semiconductor Company (C) United States | xSeries Xeon 2.8 GHz - Gig-Ethernet IBM | 472 | 2004 | 1.58 | 2.64 |
| 303 | Scientific Supercomputing Center Karlsruhe Germany | Cluster Platform 6000 rx2600 Itanium2 1.5 GHz, Quadrics Hewlett-Packard | 312 | 2005 | 1.57 | 1.87 |
| 304 | Petroleum Company (G) Saudia Arabia | Cluster Platform 3000 DL360G3 Xeon 3.06 GHz Myrinet Hewlett-Packard | 320 | 2004 | 1.55 | 1.96 |
| 305 | Geoscience (A) China | BladeCenter Xeon 3.06 GHz, Gig-Ethernet IBM | 412 | 2004 | 1.55 | 2.52 |
| 306 | Ford Motor Company United States | eServer Opteron 2.2 GHz. Myrinet IBM | 512 | 2004 | 1.54 | 2.25 |
| 307 | University of Minnesota/Supercomputing Institute United States | SGI Altix 3700 Bx2, 1.6 GHz, NUMALink SGI | 256 | 2005 | 1.53 | 1.64 |
| 308 | Semiconductor Company (D) Israel | xSeries x336 Cluster, Xeon EM64T 3.2 GHz, GigEthernet IBM | 366 | 2005 | 1.53 | 2.34 |
| 309 | Semiconductor Company (D) Israel | xSeries x336 Cluster, Xeon EM64T 3.2 GHz, GigEthernet IBM | 366 | 2005 | 1.53 | 2.34 |
| 310 | IBM - Deep Computing Capacity on Demand Center United States | xSeries Xeon 3.06 GHz - Gig-E IBM | 406 | 2004 | 1.52 | 2.48 |
| 311 | IBM - Deep Computing Capacity on Demand Center United States | xSeries Xeon 3.06 GHz - Gig-E IBM | 406 | 2004 | 1.52 | 2.48 |
| 312 | IBM - Deep Computing Capacity on Demand Center United States | xSeries Xeon 3.06 GHz - Gig-E IBM | 406 | 2004 | 1.52 | 2.48 |
| 313 | IBM - Deep Computing Capacity on Demand Center United States | xSeries Xeon 3.06 GHz - Gig-E IBM | 406 | 2004 | 1.52 | 2.48 |
| 314 | Oracle Corporation United States | Cluster Platform 3000 DL380G3, Pentium4 Xeon 2.8 GHz, Myrinet Hewlett-Packard | 468 | 2004 | 1.52 | 2.62 |
| 315 | Oracle Corporation United States | Cluster Platform 3000 DL380G3, Pentium4 Xeon 2.8 GHz, Myrinet Hewlett-Packard | 468 | 2004 | 1.52 | 2.62 |
| 316 | Oracle Corporation United States | Cluster Platform 3000 DL380G3, Pentium4 Xeon 2.8 GHz, Myrinet Hewlett-Packard | 468 | 2004 | 1.52 | 2.62 |
| 317 | Semiconductor Company (I) United States | xSeries x336 Cluster, Xeon EM64T 3.6 GHz, GigEthernet IBM | 414 | 2005 | 1.52 | 2.98 |
| 318 | Semiconductor Company (I) United States | xSeries x336 Cluster, Xeon EM64T 3.6 GHz, GigEthernet IBM | 414 | 2005 | 1.52 | 2.98 |
| 319 | Semiconductor Company (I) United States | xSeries x336 Cluster, Xeon EM64T 3.6 GHz, GigEthernet IBM | 414 | 2005 | 1.52 | 2.98 |
| 320 | Semiconductor Company (I) United States | xSeries x336 Cluster, Xeon EM64T 3.6 GHz, GigEthernet IBM | 414 | 2005 | 1.52 | 2.98 |
| 321 | Semiconductor Company (I) United States | xSeries x336 Cluster, Xeon EM64T 3.6 GHz, GigEthernet IBM | 414 | 2005 | 1.52 | 2.98 |
| 322 | Semiconductor Company (I) United States | xSeries x336 Cluster, Xeon EM64T 3.6 GHz, GigEthernet IBM | 414 | 2005 | 1.52 | 2.98 |
| 323 | Semiconductor Company (I) United States | xSeries x336 Cluster, Xeon EM64T 3.6 GHz, GigEthernet IBM | 414 | 2005 | 1.52 | 2.98 |
| 324 | University of Shanghai China | ZQ3000 - Cluster Platform 3000 DL360G3 Xeon 3.06 GHz, Infiniband Hewlett-Packard | 352 | 2005 | 1.51 | 2.15 |
| 325 | Sandia National Laboratories United States | Vplant Cluster P4 XEON 2.4/2.0 GHz - Myrinet Dell | 660 | 2002 | 1.50 | 2.96 |
| 326 | Cornell Theory Center United States | PowerEdge 2650 Cluster P4 Xeon 2.4 GHz/MSWindows - GigE Dell | 640 | 2003 | 1.50 | 3.07 |
| 327 | Petroleum Company (G) Saudia Arabia | xSeries x335 Cluster, Xeon 3.2 GHz, GigEthernet IBM | 400 | 2004 | 1.50 | 2.56 |
| 328 | Eltra Israel | BladeCenter HS20 Xeon 3.06 GHz, Gig-Ethernet IBM | 400 | 2004 | 1.50 | 2.45 |
| 329 | Sony Online Gaming United States | BladeCenter Xeon 3.06 GHz, Gig-Ethernet IBM | 400 | 2004 | 1.50 | 2.45 |
| 330 | Semiconductor Company (F) India | xSeries x336 Cluster, Xeon EM64T 3.2 GHz, GigEthernet IBM | 354 | 2005 | 1.49 | 2.27 |
| 331 | DKRZ - Deutsches Klimarechenzentrum Germany | SX-6/192M24 NEC | 192 | 2003 | 1.48 | 1.54 |
| 332 | CNRS/IDRIS France | eServer pSeries 655 - 4way (1.7 GHz Power4+) IBM | 384 | 2004 | 1.48 | 2.61 |
| 333 | Verisign United States | xSeries Cluster Xeon 2.4 GHz - Gig-E IBM | 800 | 2003 | 1.48 | 3.84 |
| 334 | Semiconductor Company (D) Israel | xSeries x336 Cluster, Xeon EM64T 3.2 GHz, GigEthernet IBM | 350 | 2005 | 1.47 | 2.24 |
| 335 | Semiconductor Company (D) Israel | xSeries x336 Cluster, Xeon EM64T 3.2 GHz, GigEthernet IBM | 350 | 2005 | 1.47 | 2.24 |
| 336 | Semiconductor Company (D) Israel | xSeries x336 Cluster, Xeon EM64T 3.2 GHz, GigEthernet IBM | 350 | 2005 | 1.47 | 2.24 |
| 337 | Telecom Italia Italy | SuperDome 1 GHz/HPlex Hewlett-Packard | 640 | 2005 | 1.46 | 2.56 |
| 338 | Altria Group - Philip Morris Management United States | pSeries 690 Turbo 1.3GHz IBM | 512 | 2004 | 1.46 | 2.66 |
| 339 | University of Toronto Canada | PowerRACK-HX dual Xeon 2.4 GHz - SMC GigE Self-made | 528 | 2003 | 1.46 | 2.53 |
| 340 | Telkom SA South Africa | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 384 | 2004 | 1.45 | 2.30 |
| 341 | Universidad Politecnica Madrid Spain | eServer BladeCenter JS20 (PowerPC970 2.2 GHz), Myrinet IBM | 248 | 2005 | 1.45 | 2.18 |
| 342 | University of Alaska - ARSC United States | Cray X1 Cray Inc. | 124 | 2003 | 1.45 | 1.59 |
| 343 | Semiconductor Company (J) United States | xSeries x336 Cluster, Xeon EM64T 3.2 GHz, GigEthernet IBM | 344 | 2005 | 1.45 | 2.20 |
| 344 | Marathon Oil Company United States | SGI Altix 3700 Bx2, 1.5 GHz, Numalink SGI | 256 | 2005 | 1.44 | 1.54 |
| 345 | NOAA/Geophysical Fluid Dynamics Laboratory (GFDL) United States | SGI Altix 3700 Bx2, 1.5 GHz, Numalink SGI | 256 | 2005 | 1.44 | 1.54 |
| 346 | NOAA/Geophysical Fluid Dynamics Laboratory (GFDL) United States | SGI Altix 3700 Bx2, 1.5 GHz, Numalink SGI | 256 | 2005 | 1.44 | 1.54 |
| 347 | Idaho National Engineering Laboratory United States | Fire V20z Cluster, Opteron 2.2 GHz, GigEthernet Sun Microsystems | 460 | 2004 | 1.44 | 2.02 |
| 348 | Japan Adv. Inst. of Science and Technology (JAIST) Japan | Cray XT3, 2.4 GHz Cray Inc. | 360 | 2005 | 1.43 | 1.73 |
| 349 | Semiconductor Company (C) United States | xSeries Xeon 2.8 GHz, Gig-Ethernet IBM | 428 | 2004 | 1.43 | 2.40 |
| 350 | IBM United States | pSeries 690 Turbo 1.7 GHz GigEth IBM | 384 | 2003 | 1.42 | 2.61 |
| 351 | Geoscience (B) India | BladeCenter HS20 Xeon 3.06 GHz, Gig-Ethernet IBM | 378 | 2005 | 1.42 | 2.31 |
| 352 | Geoscience (B) India | BladeCenter HS20 Xeon 3.06 GHz, Gig-Ethernet IBM | 378 | 2005 | 1.42 | 2.31 |
| 353 | Energy Company (D) United States | Cluster Platform 6000 rx4640-4x136 Itanium2 1.3 GHz, GigE Hewlett-Packard | 544 | 2003 | 1.42 | 2.83 |
| 354 | Semiconductor Company (H) United States | xSeries x336 Cluster, Xeon EM64T 3.2 GHz, GigEthernet IBM | 336 | 2005 | 1.42 | 2.15 |
| 355 | BMW AG Germany | rx4440-8 Hewlett-Packard | 656 | 2005 | 1.42 | 2.62 |
| 356 | Naval Oceanographic Office (NAVOCEANO) United States | SP Power3 375 MHz IBM | 1336 | 2000 | 1.42 | 2.00 |
| 357 | Los Alamos National Laboratory United States | SGI Altix 3700, 1.6 GHz, NUMALink SGI | 256 | 2005 | 1.41 | 1.64 |
| 358 | Naval Research Laboratory (NRL) United States | SGI Altix 3700, 1.6 GHz, NUMALink SGI | 256 | 2005 | 1.41 | 1.64 |
| 359 | CEG Gramat France | SGI Altix 1.5 GHz SGI | 256 | 2004 | 1.41 | 1.54 |
| 360 | NOAA/Geophysical Fluid Dynamics Laboratory (GFDL) United States | SGI Altix 1.5 GHz SGI | 256 | 2004 | 1.41 | 1.54 |
| 361 | NOAA/Geophysical Fluid Dynamics Laboratory (GFDL) United States | SGI Altix 1.5 GHz SGI | 256 | 2004 | 1.41 | 1.54 |
| 362 | Oak Ridge National Laboratory United States | SGI Altix 1.5 GHz SGI | 256 | 2003 | 1.41 | 1.54 |
| 363 | US Army Research Laboratory (ARL) United States | SGI Altix 1.5 GHz SGI | 256 | 2004 | 1.41 | 1.54 |
| 364 | Beijing University China | Cluster Platform 3000 DL360G4 Xeon 3.2 GHz, Infiniband Hewlett-Packard | 270 | 2005 | 1.40 | 1.73 |
| 365 | Telkom SA South Africa | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 320 | 2004 | 1.40 | 1.92 |
| 366 | Robert Bosch Germany | Cluster Platform 3000 DL360G4 Xeon 3.4 GHz, GigEthernet Hewlett-Packard | 360 | 2005 | 1.40 | 2.45 |
| 367 | Mississippi State University United States | Maverick - xSeries x335 Cluster, Xeon 3.06 GHz, Infiniband IBM | 384 | 2004 | 1.39 | 2.35 |
| 368 | HLRN at Universitaet Hannover / RRZN Germany | pSeries 690 Turbo 1.3GHz IBM | 512 | 2004 | 1.38 | 2.66 |
| 369 | HLRN at ZIB/Konrad Zuse-Zentrum fuer Informationstechnik Germany | pSeries 690 Turbo 1.3GHz IBM | 512 | 2004 | 1.38 | 2.66 |
| 370 | Acxiom United States | Cluster Platform 3000 DL360G3, Xeon 3.2 GHz, Myrinet Hewlett-Packard | 400 | 2004 | 1.38 | 2.56 |
| 371 | National Institute for Fusion Science Japan | SX-7/160M5 NEC | 160 | 2003 | 1.38 | 1.41 |
| 372 | Government United States | CP6000 rx1620, Itanium2 1.6 GHz, Quadrics Hewlett-Packard | 244 | 2005 | 1.37 | 1.56 |
| 373 | University of Kentucky United States | Cluster Platform 3000 DL140 Xeon 3.4 GHz Myrinet Hewlett-Packard | 256 | 2005 | 1.37 | 1.74 |
| 374 | Raytheon United States | BladeCenter Xeon 3.06 GHz, Gig-Ethernet IBM | 364 | 2003 | 1.37 | 2.23 |
| 375 | Raytheon/JPL United States | xSeries Cluster Xeon 3.06 GHz - Gig-E IBM | 364 | 2005 | 1.37 | 2.23 |
| 376 | HP Financial Services Germany | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 320 | 2004 | 1.36 | 1.92 |
| 377 | Hewlett-Packard United States | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 320 | 2004 | 1.36 | 1.92 |
| 378 | Hewlett-Packard United States | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 320 | 2004 | 1.36 | 1.92 |
| 379 | University of Arkansas United States | Red Diamond - PowerEdge 1850, 3.2 GHz, Infiniband Dell | 256 | 2005 | 1.35 | 1.64 |
| 380 | Biotech Company (A) United Kingdom | BladeCenter Xeon 2.8 GHz, Gig-Ethernet IBM | 400 | 2004 | 1.34 | 2.24 |
| 381 | Semiconductor Company (H) United States | xSeries x336 Cluster, Xeon EM64T 3.6 GHz, GigEthernet IBM | 364 | 2005 | 1.33 | 2.62 |
| 382 | Semiconductor Company (H) United States | xSeries x336 Cluster, Xeon EM64T 3.6 GHz, GigEthernet IBM | 364 | 2005 | 1.33 | 2.62 |
| 383 | Semiconductor Company (H) United States | xSeries x336 Cluster, Xeon EM64T 3.6 GHz, GigEthernet IBM | 364 | 2005 | 1.33 | 2.62 |
| 384 | France Telecom France | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 704 | 2005 | 1.33 | 2.46 |
| 385 | Hutchison H3G Italy | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 704 | 2005 | 1.33 | 2.46 |
| 386 | Youngwoo Korea, South | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 704 | 2005 | 1.33 | 2.46 |
| 387 | Banco Azteca Mexico | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 352 | 2004 | 1.33 | 2.11 |
| 388 | Umea University / HPC2N Sweden | HP Opteron 2.2 GHz, Myrinet Hewlett-Packard | 384 | 2004 | 1.33 | 1.69 |
| 389 | Semiconductor Company (H) United States | xSeries x336 Cluster, Xeon EM64T 3.6 GHz, GigEthernet IBM | 362 | 2005 | 1.33 | 2.61 |
| 390 | Semiconductor Company (H) United States | xSeries x336 Cluster, Xeon EM64T 3.6 GHz, GigEthernet IBM | 362 | 2005 | 1.33 | 2.61 |
| 391 | Semiconductor Company (H) United States | xSeries x336 Cluster, Xeon EM64T 3.6 GHz, GigEthernet IBM | 362 | 2005 | 1.33 | 2.61 |
| 392 | Semiconductor Company (H) United States | xSeries x336 Cluster, Xeon EM64T 3.6 GHz, GigEthernet IBM | 362 | 2005 | 1.33 | 2.61 |
| 393 | Semiconductor Company (H) United States | xSeries x336 Cluster, Xeon EM64T 3.6 GHz, GigEthernet IBM | 362 | 2005 | 1.33 | 2.61 |
| 394 | The University of Florida High-Performance Computing Center United States | PowerEdge 1750, Pentium4 Xeon 2.8 GHz, GigE Dell | 400 | 2004 | 1.33 | 2.24 |
| 395 | Pennsylvania State University United States | LION-XM - PowerEdge 1750, P4 Xeon 3.06 GHz, Myrinet Dell | 336 | 2004 | 1.32 | 2.06 |
| 396 | SDH Germany | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 288 | 2004 | 1.32 | 1.73 |
| 397 | Williams Information Technology Saudia Arabia | BladeCenter HS20 Cluster, Xeon 3.2 GHz, GigEthernet IBM | 350 | 2005 | 1.31 | 2.24 |
| 398 | SBC Service Inc United States | SuperDome 1 GHz/HyperPlex Hewlett-Packard | 576 | 2005 | 1.31 | 2.30 |
| 399 | Verizon United States | SuperDome 1 GHz/HyperPlex Hewlett-Packard | 576 | 2005 | 1.31 | 2.30 |
| 400 | Semiconductor Company (C) United States | xSeries Cluster Xeon 2.4 GHz - Gig-E IBM | 666 | 2004 | 1.31 | 3.20 |
| 401 | Consumer Goods Australia | eServer pSeries 690 (1.7 GHz Power4+, GigE) IBM | 352 | 2004 | 1.31 | 2.39 |
| 402 | Aerospace Company (E) Germany | CP 6000 rx2600 Itanium2 1.3 GHz, GigEthernet Hewlett-Packard | 464 | 2005 | 1.30 | 2.41 |
| 403 | Academy of Mathematics and System Science China | DeepComp 1800 - P4 Xeon 2 GHz - Myrinet lenovo | 512 | 2002 | 1.30 | 2.05 |
| 404 | DLR Germany | AT Cluster - Fire V20z Cluster, Opteron 2.4 GHz, Infiniband Sun Microsystems | 384 | 2005 | 1.30 | 1.84 |
| 405 | Joint Supercomputer Center Russia | CP6000 rx2600 Itanium2 1.5 GHz, Myrinet Hewlett-Packard | 256 | 2005 | 1.29 | 1.54 |
| 406 | US Government Classified (A) United States | Cluster Platform 6000 zx6000 Itanium2 1.5 GHz, Myrinet Hewlett-Packard | 256 | 2004 | 1.29 | 1.54 |
| 407 | Semiconductor Company (G) United States | xSeries x336 Cluster, Xeon EM64T 3.6 GHz, GigEthernet IBM | 352 | 2005 | 1.29 | 2.53 |
| 408 | Manufacturing Company (F) Italy | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 288 | 2004 | 1.29 | 1.73 |
| 409 | SBM Gates Arrow Com. United States | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 288 | 2004 | 1.29 | 1.73 |
| 410 | Tech Pacific Exports C India | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 288 | 2004 | 1.29 | 1.73 |
| 411 | Telecom SKT Korea, South | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 288 | 2004 | 1.29 | 1.73 |
| 412 | Semiconductor Company (G) United States | xSeries x336 Cluster, Xeon EM64T 3.6 GHz, GigEthernet IBM | 350 | 2005 | 1.28 | 2.52 |
| 413 | Seoul National University Korea, South | Pegasus P4 Xeon Cluster 2.2/2.4/2.8 GHz - Giganet Self-made | 520 | 2004 | 1.28 | 2.56 |
| 414 | Semiconductor Company (C) United States | xSeries Xeon 2.8 GHz - Gig-Ethernet IBM | 384 | 2004 | 1.28 | 2.15 |
| 415 | Digital China Ltd. China | SuperDome 1 GHz/HPlex Hewlett-Packard | 560 | 2004 | 1.28 | 2.24 |
| 416 | EDS United Kingdom | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 640 | 2005 | 1.28 | 2.24 |
| 417 | EDS United Kingdom | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 640 | 2005 | 1.28 | 2.24 |
| 418 | Government United Kingdom | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 640 | 2005 | 1.28 | 2.24 |
| 419 | OpenPSL Ltd. United Kingdom | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 640 | 2004 | 1.28 | 2.24 |
| 420 | PCS Trading India | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 640 | 2005 | 1.28 | 2.24 |
| 421 | Telecom Italia Italy | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 640 | 2004 | 1.28 | 2.24 |
| 422 | Telecom Italia Italy | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 640 | 2004 | 1.28 | 2.24 |
| 423 | Telecom Italia Italy | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 640 | 2004 | 1.28 | 2.24 |
| 424 | Telecom Italia Italy | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 640 | 2004 | 1.28 | 2.24 |
| 425 | Semiconductor Company (C) United States | xSeries x336 Cluster, Xeon EM64T 3.2 GHz, GigEthernet IBM | 340 | 2004 | 1.28 | 2.18 |
| 426 | SBC Service Inc United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 672 | 2005 | 1.27 | 2.35 |
| 427 | Texas Advanced Computing Center/Univ. of Texas United States | Wrangler - PowerEdge 1850, 3.2 GHz, Myrinet Dell | 256 | 2005 | 1.27 | 1.64 |
| 428 | University Bonn Germany | Himalaya - PowerEdge 1850, 3.2 GHz, Myrinet Dell | 256 | 2005 | 1.27 | 1.64 |
| 429 | Semiconductor Company (J) United States | xSeries x336 Cluster, Xeon EM64T 3.6 GHz, GigEthernet IBM | 346 | 2005 | 1.27 | 2.49 |
| 430 | Deutsche Telekom AG Germany | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 640 | 2004 | 1.26 | 2.24 |
| 431 | Fujitsu Services United Kingdom | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 640 | 2005 | 1.26 | 2.24 |
| 432 | Hutchison H3G United Kingdom | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 640 | 2005 | 1.26 | 2.24 |
| 433 | Magirus International Germany | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 640 | 2005 | 1.26 | 2.24 |
| 434 | Verizon United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 640 | 2005 | 1.26 | 2.24 |
| 435 | Vodafone (KK) Chuo Japan | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 640 | 2004 | 1.26 | 2.24 |
| 436 | Vodafone (KK) Chuo Japan | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 640 | 2004 | 1.26 | 2.24 |
| 437 | Zungwon Korea, South | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 640 | 2005 | 1.26 | 2.24 |
| 438 | Financial Services (H) United States | BladeCenter Xeon 3.06 GHz, Gig-Ethernet IBM | 336 | 2004 | 1.26 | 2.06 |
| 439 | Semiconductor Company (J) United States | xSeries x336 Cluster, Xeon EM64T 3.6 GHz, GigEthernet IBM | 344 | 2005 | 1.26 | 2.48 |
| 440 | Public Sector China | xSeries Cluster Xeon 2.4 GHz - Gig-E IBM | 622 | 2003 | 1.26 | 2.99 |
| 441 | University of Houston United States | Cluster Platform 6000 rx2600 Itanium2 1.3 GHz Cluster Hewlett-Packard | 304 | 2003 | 1.25 | 1.58 |
| 442 | SK Global Korea, South | SuperDome 1 GHz/HyperPlex Hewlett-Packard | 544 | 2005 | 1.24 | 2.18 |
| 443 | Geoscience (E) Egypt | BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz - Gig-Ethernet IBM | 336 | 2005 | 1.23 | 2.42 |
| 444 | DaimlerChrysler Germany | xSeries Xeon 3.06 GHz, Myrinet IBM | 260 | 2004 | 1.23 | 1.59 |
| 445 | Societe Generale France | Cluster Platform 3000 DL360G3, Xeon 3.2 GHz, GigEthernet Hewlett-Packard | 320 | 2004 | 1.23 | 2.05 |
| 446 | Cambridge University United Kingdom | Franklin - Fire 15K 1.2 GHz Sun Microsystems | 900 | 2002 | 1.23 | 2.16 |
| 447 | Financial Institution (C) United States | xSeries x336 Cluster, Xeon EM64T 3.6 GHz, GigEthernet IBM | 332 | 2005 | 1.22 | 2.39 |
| 448 | MTU Aero Engines Germany | xSeries Xeon 3.06 GHz, Myrinet IBM | 256 | 2004 | 1.22 | 1.57 |
| 449 | University of Liverpool United Kingdom | PowerEdge 650, 3.06 GHz, Gig Ethernet Dell | 940 | 2003 | 1.21 | 5.75 |
| 450 | BMW AG Germany | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 256 | 2005 | 1.21 | 1.54 |
| 451 | BMW AG Germany | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 256 | 2005 | 1.21 | 1.54 |
| 452 | BMW AG Germany | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 256 | 2005 | 1.21 | 1.54 |
| 453 | Carrefour Spain | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 256 | 2004 | 1.21 | 1.54 |
| 454 | Ericsson Sweden | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 256 | 2004 | 1.21 | 1.54 |
| 455 | Hewlett-Packard United States | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 256 | 2004 | 1.21 | 1.54 |
| 456 | Hewlett-Packard United States | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 256 | 2004 | 1.21 | 1.54 |
| 457 | Hewlett-Packard United States | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 256 | 2004 | 1.21 | 1.54 |
| 458 | Hewlett-Packard United States | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 256 | 2004 | 1.21 | 1.54 |
| 459 | Hewlett-Packard United States | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 256 | 2004 | 1.21 | 1.54 |
| 460 | Hewlett-Packard United States | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 256 | 2004 | 1.21 | 1.54 |
| 461 | Humantel Portugal | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 256 | 2004 | 1.21 | 1.54 |
| 462 | Instituto Latinoamericano Mexico | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 256 | 2004 | 1.21 | 1.54 |
| 463 | Itellium Systems Germany | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 256 | 2005 | 1.21 | 1.54 |
| 464 | Logistics Group Germany | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 256 | 2005 | 1.21 | 1.54 |
| 465 | SARL International Germany | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 256 | 2004 | 1.21 | 1.54 |
| 466 | SBM Gates Arrow Com. United States | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 256 | 2004 | 1.21 | 1.54 |
| 467 | Saxony Developments Ltd China | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 256 | 2005 | 1.21 | 1.54 |
| 468 | University of Kentucky United States | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 256 | 2005 | 1.21 | 1.54 |
| 469 | Semiconductor Company (C) United States | xSeries Xeon 3.06 GHz - Gig-E IBM | 322 | 2004 | 1.21 | 1.97 |
| 470 | Bank (H) Germany | BladeCenter HS20 Cluster, Xeon EM64T 3.2 GHz - Gig-Ethernet IBM | 280 | 2005 | 1.21 | 1.79 |
| 471 | Bear Stearns United States | DL560, Pentium4 Xeon 2.6 GHz, Myrinet Hewlett-Packard | 400 | 2004 | 1.21 | 2.08 |
| 472 | Amdocs United States | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 608 | 2005 | 1.20 | 2.13 |
| 473 | Centrica Plc United Kingdom | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 608 | 2005 | 1.20 | 2.13 |
| 474 | SberBank Russia | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 608 | 2005 | 1.20 | 2.13 |
| 475 | Vodafone United Kingdom | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 608 | 2005 | 1.20 | 2.13 |
| 476 | Zungwon Korea, South | SuperDome 875 MHz/HyperPlex Hewlett-Packard | 608 | 2005 | 1.20 | 2.13 |
| 477 | BellSouth United States | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 256 | 2004 | 1.20 | 1.54 |
| 478 | CANTV/GTE Venezuela | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 256 | 2004 | 1.20 | 1.54 |
| 479 | HP Financial Services United States | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 256 | 2004 | 1.20 | 1.54 |
| 480 | Hitachi Japan | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 256 | 2004 | 1.20 | 1.54 |
| 481 | SARL International Germany | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 256 | 2004 | 1.20 | 1.54 |
| 482 | SDH Germany | Integrity Superdome, 1.5 GHz, HPlex Hewlett-Packard | 256 | 2004 | 1.20 | 1.54 |
| 483 | Semiconductor Company (F) India | xSeries Cluster Xeon 2.4 GHz - Gig-E IBM | 574 | 2003 | 1.20 | 2.76 |
| 484 | US Navy United States | BladeCenter HS20 Cluster, Xeon EM64T 3.2 GHz - Myrinet IBM | 252 | 2005 | 1.20 | 1.61 |
| 485 | US Navy United States | BladeCenter HS20 Cluster, Xeon EM64T 3.2 GHz - Myrinet IBM | 252 | 2005 | 1.20 | 1.61 |
| 486 | US Navy United States | BladeCenter HS20 Cluster, Xeon EM64T 3.2 GHz - Myrinet IBM | 252 | 2005 | 1.20 | 1.61 |
| 487 | US Navy United States | BladeCenter HS20 Cluster, Xeon EM64T 3.2 GHz - Myrinet IBM | 252 | 2005 | 1.20 | 1.61 |
| 488 | Lawrence Livermore National Laboratory United States | SP Power3 375 MHz 16 way IBM | 1088 | 2001 | 1.19 | 1.63 |
| 489 | Osaka University Japan | SX-5/128M8 3.2ns NEC | 128 | 2001 | 1.19 | 1.28 |
| 490 | Chartered Semiconductor Manufacturing Singapore | Cluster Platform 4000 DL145 Opteron 2.2 GHz Myrinet Hewlett-Packard | 384 | 2005 | 1.19 | 1.69 |
| 491 | University of Hong Kong Hong Kong | HPCPower - xSeries Xeon 2.8 GHz, Gig-Ethernet IBM | 358 | 2005 | 1.19 | 2.00 |
| 492 | Semiconductor Company (C) United States | xSeries Xeon 2.8 GHz, Gig-Ethernet IBM | 354 | 2004 | 1.18 | 1.98 |
| 493 | Petroleum Company (G) Saudia Arabia | xSeries Cluster Xeon 2.4 GHz - Gig-E IBM | 562 | 2003 | 1.18 | 2.70 |
| 494 | Hewlett-Packard United States | SuperDome 1 GHz/HPlex Hewlett-Packard | 512 | 2004 | 1.17 | 2.05 |
| 495 | Samsung SDS Korea, South | SuperDome 1 GHz/HPlex Hewlett-Packard | 512 | 2005 | 1.17 | 2.05 |
| 496 | Saxony Developments Ltd China | SuperDome 1 GHz/HPlex Hewlett-Packard | 512 | 2005 | 1.17 | 2.05 |
| 497 | CSC (Center for Scientific Computing) Finland | pSeries 690 1.1GHz IBM | 512 | 2002 | 1.17 | 2.25 |
| 498 | Florida State University United States | pSeries 690 1.1GHz IBM | 512 | 2002 | 1.17 | 2.25 |
| 499 | Doshisha University Japan | Opteron 1.8 GHz, Gig Ethernet Visual Technology | 512 | 2003 | 1.17 | 1.84 |
| 500 | Government United States | T3E1200 Cray Inc. | 1900 | 2001 | 1.17 | 2.28 |