Proprietary
In November 2003, 2 systems appeared in the TOP500 list.
| Rank | System | Procs | Memory(GB) | Rmax (GFlops) | Rpeak (GFlops) | Vendor |
|---|---|---|---|---|---|---|
| 27 | ASCI Red | 9632 | N/A | 2379 | 3207 | Intel |
| 73 | BlueGene/L DD1 Prototype (0.5GHz PowerPC 440 w/Custom) | 1024 | N/A | 1435 | 2048 | IBM |