| List | Rank | System | Vendor | Total Cores | Rmax (GFlop/s) | Rpeak (GFlop/s) | Power (kW) | 
                    
                    
                        
                            | 11/2009 | 492 | Cluster Platform 6000 rx1620, Itanium2 1.6 GHz, Quadrics | HPE | 4,096 | 20.45 | 26.21 |  | 
                    
                        
                            | 06/2009 | 327 | Cluster Platform 6000 rx1620, Itanium2 1.6 GHz, Quadrics | HPE | 4,096 | 20.45 | 26.21 |  | 
                    
                        
                            | 11/2008 | 166 | Cluster Platform 6000 rx1620, Itanium2 1.6 GHz, Quadrics | HPE | 4,096 | 20.45 | 26.21 |  | 
                    
                        
                            | 06/2008 | 83 | Cluster Platform 6000 rx1620, Itanium2 1.6 GHz, Quadrics | HPE | 4,096 | 20.45 | 26.21 |  | 
                    
                        
                            | 11/2007 | 44 | Cluster Platform 6000 rx1620, Itanium2 1.6 GHz, Quadrics | HPE | 4,096 | 20.45 | 26.21 |  |