For more information about the sites and systems in the list, click on the links or view the complete list.
| Rank | System | Cores | Rmax (GFlop/s) | Rpeak (GFlop/s) | Power (kW) |
|---|---|---|---|---|---|
| 1 | ASCI Red, Intel Sandia National Laboratories United States | 9,152 | 1,338.00 | 1,830.40 | |
| 2 | T3E1200, Cray/HPE Government United States | 1,080 | 891.00 | 1,296.00 | |
| 3 | T3E900, Cray/HPE Government United States | 1,248 | 634.00 | 1,123.20 | |
| 4 | T3E900, Cray/HPE United Kingdom Meteorological Office United Kingdom | 840 | 450.00 | 756.00 | |
| 5 | T3E, Cray/HPE NASA/Goddard Space Flight Center United States | 1,024 | 448.60 | 614.40 | |
| 6 | CP-PACS/2048, Hitachi/Tsukuba Center for Computational Sciences, University of Tsukuba Japan | 2,048 | 368.20 | 614.40 | |
| 7 | T3E, Cray/HPE Max-Planck-Gesellschaft MPI/IPP Germany | 784 | 342.00 | 470.40 | |
| 8 | T3E900, Cray/HPE DOE/SC/LBNL/NERSC United States | 512 | 321.00 | 460.80 | |
| 9 | T3E900, Cray/HPE Naval Oceanographic Office - NAVO DSRC United States | 512 | 321.00 | 460.80 | |
| 10 | T3E900, Cray/HPE Universitaet Stuttgart Germany | 512 | 321.00 | 460.80 |