| Rank | Site | Computer | Cores | Year | Rmax | Rpeak | | 1 | The Earth Simulator Center Japan | Earth-Simulator NEC | 5120 | 2002 | 35860 | 40960 |
| 2 | Lawrence Livermore National Laboratory United States | ASCI White, SP Power3 375 MHz IBM | 8192 | 2000 | 7226 | 12288 |
| 3 | Pittsburgh Supercomputing Center United States | AlphaServer SC45, 1 GHz Hewlett-Packard | 3016 | 2001 | 4463 | 6032 |
| 4 | Commissariat a l'Energie Atomique (CEA) France | AlphaServer SC45, 1 GHz Hewlett-Packard | 2560 | 2001 | 3980 | 5120 |
| 5 | NERSC/LBNL United States | SP Power3 375 MHz 16 way IBM | 3328 | 2001 | 3052 | 4992 |
| 6 | Los Alamos National Laboratory United States | AlphaServer SC45, 1 GHz Hewlett-Packard | 2048 | 2002 | 2916 | 4096 |
| 7 | Sandia National Laboratories United States | ASCI Red Intel | 9632 | 1999 | 2379 | 3207 |
| 8 | Oak Ridge National Laboratory United States | pSeries 690 Turbo 1.3GHz IBM | 864 | 2002 | 2310 | 4492.8 |
| 9 | Lawrence Livermore National Laboratory United States | ASCI Blue-Pacific SST, IBM SP 604e IBM | 5808 | 1999 | 2144 | 3856.5 |
| 10 | IBM/US Army Research Laboratory (ARL) United States | pSeries 690 Turbo 1.3GHz IBM | 768 | 2002 | 2050 | 3993.6 |
| 11 | Atomic Weapons Establishment United Kingdom | SP Power3 375 MHz 16 way IBM | 1920 | 2002 | 1910 | 2880 |
| 12 | IBM/ECMWF United States | pSeries 690 Turbo 1.3GHz IBM | 704 | 2002 | 1849 | 3660.8 |
| 13 | University of Tokyo Japan | SR8000/MPP Hitachi | 1152 | 2001 | 1709.1 | 2074 |
| 14 | Leibniz Rechenzentrum Germany | SR8000-F1/168 Hitachi | 168 | 2002 | 1653 | 2016 |
| 15 | Los Alamos National Laboratory United States | ASCI Blue Mountain SGI | 6144 | 1998 | 1608 | 3072 |
| 16 | Naval Oceanographic Office (NAVOCEANO) United States | SP Power3 375 MHz IBM | 1336 | 2000 | 1417 | 2004 |
| 17 | Deutscher Wetterdienst Germany | SP Power3 375 MHz 16 way IBM | 1280 | 2001 | 1293 | 1920 |
| 18 | NCAR (National Center for Atmospheric Research) United States | SP Power3 375 MHz 16 way IBM | 1260 | 2001 | 1272 | 1890 |
| 19 | Osaka University Japan | SX-5/128M8 3.2ns NEC | 128 | 2001 | 1192 | 1280 |
| 20 | National Centers for Environmental Prediction United States | SP Power3 375 MHz IBM | 1104 | 2000 | 1179 | 1656 |
| 21 | National Centers for Environmental Prediction United States | SP Power3 375 MHz IBM | 1104 | 2001 | 1179 | 1656 |
| 22 | Government United States | T3E1200 Cray Inc. | 1900 | 2001 | 1166 | 2280 |
| 23 | ERDC MSRC United States | T3E1200/900 Cray Inc. | 1792 | 1999 | 1166 | 1999 |
| 24 | Lawrence Livermore National Laboratory United States | SP Power3 375 MHz 16 way IBM | 1088 | 2001 | 1100 | 1632 |
| 25 | NEC Fuchu Plant Japan | SX-6/128M16 NEC | 128 | 2002 | 982 | 1024 |
| 26 | UCSD/San Diego Supercomputer Center United States | SP Power3 375 MHz 8 way IBM | 1152 | 2000 | 929 | 1728 |
| 27 | High Energy Accelerator Research Organization /KEK Japan | SR8000-F1/100 Hitachi | 100 | 2000 | 917 | 1200 |
| 28 | US Army HPC Research Center at NCS United States | T3E1200 Cray Inc. | 1084 | 2000 | 892 | 1300.8 |
| 29 | ECMWF United Kingdom | VPP5000/100 Fujitsu | 100 | 2000 | 886 | 960 |
| 30 | University of Tokyo Japan | SR8000/128 Hitachi | 128 | 1999 | 873 | 1024 |
| 31 | Maui High-Performance Computing Center (MHPCC) United States | SP Power3 375 MHz 16 way IBM | 812 | 2001 | 837 | 1218 |
| 32 | CINECA Italy | pSeries 690 Turbo 1.3GHz GigEth IBM | 512 | 2002 | 826.5 | 2662.4 |
| 33 | CSC (Center for Scientific Computing) Finland | pSeries 690 1.1GHz GigEth IBM | 512 | 2002 | 826.5 | 2253 |
| 34 | Florida State University United States | pSeries 690 1.1GHz GigEth IBM | 512 | 2002 | 826.5 | 2253 |
| 35 | Universitaet Heidelberg - IWR Germany | HELICS AMD 1.4 GHz - Myrinet Megware | 512 | 2002 | 825 | 1433.6 |
| 36 | Government United States | T3E900 Cray Inc. | 1324 | 1997 | 815 | 1191.6 |
| 37 | ERDC MSRC United States | emerald - AlphaServer SC45, 1 GHz Hewlett-Packard | 512 | 2002 | 809 | 1024 |
| 38 | NASA/Goddard Space Flight Center United States | AlphaServer SC45, 1 GHz Hewlett-Packard | 512 | 2002 | 809 | 1024 |
| 39 | Wright-Patterson Air Force Base/DoD ASC United States | AlphaServer SC45, 1 GHz Hewlett-Packard | 512 | 2002 | 809 | 1024 |
| 40 | Charles Schwab United States | SP Power3 375 MHz IBM | 768 | 2000 | 795 | 1152 |
| 41 | Institute for Materials Research/Tohoku University Japan | SR8000-G1/64 Hitachi | 64 | 2001 | 790.7 | 921.6 |
| 42 | Australian Partnership for Advanced Computing (APAC) Australia | AlphaServer SC45, 1 GHz Hewlett-Packard | 480 | 2001 | 772 | 960 |
| 43 | North Carolina Supercomputing Center (NCSC) United States | SP Power3 375 MHz IBM | 720 | 2000 | 741 | 1080 |
| 44 | IBM United States | pSeries 690 Turbo 1.3GHz IBM | 256 | 2002 | 736.6 | 1331.2 |
| 45 | University of Tsukuba Japan | VPP5000/80 Fujitsu | 80 | 2001 | 730 | 768 |
| 46 | Oak Ridge National Laboratory United States | SP Power3 375 MHz IBM | 704 | 2000 | 723 | 1056 |
| 47 | GSIC Center, Tokyo Institute of Technology Japan | Presto III Athlon 1.6 GHz Self-made | 480 | 2002 | 716.1 | 1536 |
| 48 | HLRN at Universitaet Hannover / RRZN Germany | pSeries 690 Turbo 1.3GHz GigEth IBM | 384 | 2002 | 708 | 1996.8 |
| 49 | HLRN at ZIB/Konrad Zuse-Zentrum fuer Informationstechnik Germany | pSeries 690 Turbo 1.3GHz GigEth IBM | 384 | 2002 | 708 | 1996.8 |
| 50 | Sandia National Laboratories United States | CPlant/Ross Cluster Self-made | 1369 | 2001 | 706.7 | 1275.9 |
| 51 | Japan Meteorological Agency Japan | SR8000-E1/80 Hitachi | 80 | 2000 | 691.3 | 768 |
| 52 | Los Alamos National Laboratory/ACL United States | ORIGIN 2000 250 MHz SGI | 2048 | 1999 | 690.9 | 1024 |
| 53 | NCSA United States | Titan Cluster Itanium 800 MHz IBM | 320 | 2001 | 677.9 | 1024 |
| 54 | CSAR at the University of Manchester United Kingdom | T3E1200 Cray Inc. | 812 | 2000 | 671 | 974.4 |
| 55 | Deutscher Wetterdienst Germany | T3E1200 Cray Inc. | 812 | 1999 | 671 | 974.4 |
| 56 | CBRC - Tsukuba Advanced Computing Center - TACC/AIST Japan | Magi Cluster PIII 933 MHz NEC | 1040 | 2001 | 654 | 970 |
| 57 | Real World Computing (RWCP)/Tsukuba Research Center Japan | SCore IIIe/PIII 933 MHz Self-made | 1024 | 2001 | 618.3 | 955.4 |
| 58 | NCSA United States | Netfinity Cluster PIII 1 GHz - Myrinet IBM | 1024 | 2001 | 594 | 1024 |
| 59 | CNRS/IDRIS France | pSeries 690 Turbo 1.3 GHz, GigEth IBM | 256 | 2002 | 590.2 | 1331.2 |
| 60 | National Center for High Performance Computing Taiwan | pSeries 690 Turbo 1.3 GHz, GigEth IBM | 256 | 2002 | 590.2 | 1331.2 |
| 61 | Swiss Scientific Computing Center (CSCS) Switzerland | pSeries 690 Turbo 1.3 GHz, GigEth IBM | 256 | 2002 | 590.2 | 1331.2 |
| 62 | University of Tokyo/Institute for Solid State Physics Japan | SR8000-F1/60 Hitachi | 60 | 2000 | 577 | 720 |
| 63 | COLSA United States | pSeries 690 Turbo 1.3 GHz, GigEth IBM | 240 | 2002 | 564 | 1248 |
| 64 | Joint Supercomputer Center Russia | MVS1000M EV67 667 MHz Self-made | 768 | 2002 | 564 | 1024 |
| 65 | Japan Atomic Energy Research Institute Japan | VPP5000/64 Fujitsu | 64 | 2001 | 563 | 614.4 |
| 66 | Kyushu University Japan | VPP5000/64 Fujitsu | 64 | 2000 | 563 | 614.4 |
| 67 | Sprint PCS United States | SP Power3 375 MHz 16 way IBM | 528 | 2002 | 561 | 792 |
| 68 | Institute of High Performance Computing (IHPC) Singapore | pSeries 690 Turbo 1.3GHz GigEth IBM | 224 | 2002 | 555.3 | 1164.8 |
| 69 | Manufacturer (G) United States | pSeries 690 Turbo 1.3GHz GigEth IBM | 224 | 2002 | 555.3 | 1164.8 |
| 70 | IBM Thomas J. Watson Research Center United States | SP Power3 375 MHz 16 way IBM | 520 | 2002 | 554 | 780 |
| 71 | Deutsche Telekom AG Germany | SP Power3 375 MHz IBM | 528 | 2000 | 553 | 792 |
| 72 | Wright-Patterson Air Force Base/DoD ASC United States | SP Power3 375 MHz IBM | 528 | 2000 | 553 | 792 |
| 73 | United Kingdom Meteorological Office United Kingdom | T3E900 Cray Inc. | 876 | 1997 | 552 | 788.4 |
| 74 | State Farm United States | SP Power3 375 MHz IBM | 520 | 2001 | 546 | 780 |
| 75 | Petroleum Company (G) Saudia Arabia | SP Power3 375 MHz 16 way IBM | 512 | 2001 | 546 | 768 |
| 76 | US Army Research Laboratory (ARL) United States | SP Power3 375 MHz 16 way IBM | 512 | 2000 | 546 | 768 |
| 77 | Pharmaceutical Company Germany | SP Power3 375 MHz IBM | 510 | 2001 | 536 | 765 |
| 78 | Indiana University United States | SP Power3 375 MHz IBM | 508 | 2001 | 534 | 762 |
| 79 | Sandia National Laboratories United States | Precision 530 Cluster P4 XEON 2.0 GHz Dell | 256 | 2002 | 526 | 1024 |
| 80 | United Kingdom Meteorological Office United Kingdom | T3E1200 Cray Inc. | 636 | 1999 | 526 | 763.2 |
| 81 | NASA/Goddard Space Flight Center United States | T3E Cray Inc. | 1356 | 2000 | 525 | 813.6 |
| 82 | Max-Planck-Gesellschaft MPI/IPP Germany | pSeries 690 Turbo 1.3GHz GigEth IBM | 208 | 2002 | 513 | 1081.6 |
| 83 | State Farm United States | SP Power3 375 MHz IBM | 488 | 2001 | 512 | 732 |
| 84 | Wright-Patterson Air Force Base/DoD ASC United States | AlphaServer SC45, 1 GHz Hewlett-Packard | 324 | 2002 | 512 | 648 |
| 85 | Hewlett-Packard United States | AlphaServer SC ES40/EV67 Hewlett-Packard | 512 | 2000 | 507.6 | 682.66 |
| 86 | Lawrence Livermore National Laboratory United States | AlphaServer SC ES40/EV67 Hewlett-Packard | 512 | 2000 | 507.6 | 682.66 |
| 87 | DKRZ - Deutsches Klimarechenzentrum Germany | SX-6/64M8 NEC | 64 | 2002 | 495.2 | 512 |
| 88 | National Aerospace Laboratory of Japan Japan | SX-6/64M8 NEC | 64 | 2002 | 495.2 | 512 |
| 89 | National Institute for Environmental Studies Japan | SX-6/64M8 NEC | 64 | 2002 | 495.2 | 512 |
| 90 | Centre Informatique National (CINES) France | SP Power3 375 MHz IBM | 472 | 2001 | 494 | 708 |
| 91 | Nagoya University Japan | VPP5000/56 Fujitsu | 56 | 1999 | 492 | 537.6 |
| 92 | Kyoto University Japan | VPP800/63 Fujitsu | 63 | 1999 | 482 | 504 |
| 93 | Umea University / HPC2N Sweden | AMD 1.66 GHz - SCI 3D-torus Self-made | 240 | 2002 | 481 | 800 |
| 94 | Lawrence Livermore National Laboratory United States | SP Power3 375 MHz 16 way IBM | 448 | 2001 | 480 | 672 |
| 95 | EDS/ Adam Opel AG Germany | pSeries 690 Turbo 1.3GHz GigEth IBM | 192 | 2002 | 472 | 998.4 |
| 96 | Hewlett-Packard United States | SuperDome 750 MHz/HyperFabric Hewlett-Packard | 256 | 2002 | 470.9 | 768 |
| 97 | Lawrence Livermore National Laboratory United States | ASCI Blue-Pacific CTR, IBM SP 604e IBM | 1344 | 1998 | 468.2 | 892.4 |
| 98 | Hewlett-Packard United States | SuperDome 750 MHz/HyperPlex Hewlett-Packard | 256 | 2002 | 449.4 | 768 |
| 99 | Tsukuba Advanced Computing Center - TACC/AIST Japan | SR8000/64 Hitachi | 64 | 1999 | 449 | 512 |
| 100 | Cray Inc. United States | T3E1200 Cray Inc. | 540 | 1998 | 447 | 648 |