Proprietary
In June 2004, 3 systems appeared in the TOP500 list.
| Rank | System | Procs | Memory(GB) | Rmax (GFlops) | Rpeak (GFlops) | Vendor |
|---|---|---|---|---|---|---|
| 4 | BlueGene/L DD1 Prototype (0.5GHz PowerPC 440 w/Custom) | 8192 | N/A | 11680 | 16384 | IBM/ LLNL |
| 8 | BlueGene/L DD2 Prototype (0.7 GHz PowerPC 440) | 4096 | N/A | 8655 | 11469 | IBM/ LLNL |
| 61 | ASCI Red | 9632 | N/A | 2379 | 3207 | Intel |