| List | Rank | System | Vendor | Total Cores | Rmax (GFlop/s) | Rpeak (GFlop/s) | Power (kW) | 
                    
                    
                        
                            | 11/2006 | 372 | TeraGrid Cluster, Itanium 2 1.3 GHz, Myrinet | IBM | 768 | 3,152.00 | 3,993.00 |  | 
                    
                        
                            | 06/2006 | 246 | TeraGrid Cluster, Itanium 2 1.3 GHz, Myrinet | IBM | 768 | 3,152.00 | 3,993.00 |  | 
                    
                        
                            | 11/2005 | 139 | TeraGrid Cluster, Itanium 2 1.3 GHz, Myrinet | IBM | 768 | 3,152.00 | 3,993.00 |  | 
                    
                        
                            | 06/2005 | 109 | TeraGrid Cluster, Itanium 2 1.3 GHz, Myrinet | IBM | 768 | 3,152.00 | 3,993.00 |  | 
                    
                        
                            | 11/2004 | 63 | TeraGrid Cluster, Itanium 2 1.3 GHz, Myrinet | IBM | 768 | 3,152.00 | 3,993.00 |  | 
                    
                        
                            | 06/2004 | 43 | TeraGrid Cluster, Itanium 2 1.3 GHz, Myrinet | IBM | 768 | 3,152.00 | 3,993.00 |  |