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 | T3E900, Cray/HPE Government United States | 1,248 | 634.00 | 1,123.20 | |
| 3 | T3E900, Cray/HPE United Kingdom Meteorological Office United Kingdom | 840 | 430.30 | 756.00 | |
| 4 | CP-PACS/2048, Hitachi/Tsukuba Center for Computational Sciences, University of Tsukuba Japan | 2,048 | 368.20 | 614.40 | |
| 5 | T3E900, Cray/HPE DOE/SC/LBNL/NERSC United States | 512 | 264.80 | 460.80 | |
| 6 | SR2201/1024, Hitachi University of Tokyo Japan | 1,024 | 232.40 | 307.20 | |
| 7 | Numerical Wind Tunnel, Fujitsu National Aerospace Laboratory of Japan Japan | 167 | 229.00 | 281.26 | 498 |
| 8 | VPP700/116, Fujitsu ECMWF United Kingdom | 116 | 213.00 | 255.20 | |
| 9 | T3E, Cray/HPE Max-Planck-Gesellschaft MPI/IPP Germany | 672 | 196.00 | 403.20 | |
| 10 | T3E, Cray/HPE Cray Research United States | 544 | 196.00 | 326.40 |