| List | Rank | System | Vendor | Total Cores | Rmax (TFlop/s) | Rpeak (TFlop/s) | Power (kW) | 
                    
                    
                        
                            | 06/2015 | 495 | Dell Xanadu 3 Cluster, Xeon X5660 2.8 Ghz, QLogic InfiniBand QDR | DELL | 21,756 | 166.70 | 243.67 |  | 
                    
                        
                            | 11/2014 | 416 | Dell Xanadu 3 Cluster, Xeon X5660 2.8 Ghz, QLogic InfiniBand QDR | DELL | 21,756 | 166.70 | 243.67 |  | 
                    
                        
                            | 06/2014 | 338 | Dell Xanadu 3 Cluster, Xeon X5660 2.8 Ghz, QLogic InfiniBand QDR | DELL | 21,756 | 166.70 | 243.67 |  | 
                    
                        
                            | 11/2013 | 264 | Dell Xanadu 3 Cluster, Xeon X5660 2.8 Ghz, QLogic InfiniBand QDR | DELL | 21,756 | 166.70 | 243.67 |  | 
                    
                        
                            | 06/2013 | 208 | Dell Xanadu 3 Cluster, Xeon X5660 2.8 Ghz, QLogic InfiniBand QDR | DELL | 21,756 | 166.70 | 243.67 |  | 
                    
                        
                            | 11/2012 | 150 | Dell Xanadu 3 Cluster, Xeon X5660 2.8 Ghz, QLogic InfiniBand QDR | DELL | 21,756 | 166.70 | 243.67 |  | 
                    
                        
                            | 06/2012 | 105 | Dell Xanadu 3 Cluster, Xeon X5660 2.8 Ghz, QLogic InfiniBand QDR | DELL | 21,756 | 166.70 | 243.67 |  | 
                    
                        
                            | 11/2011 | 68 | Dell Xanadu 3 Cluster, Xeon X5660 2.8 Ghz, QLogic InfiniBand QDR | DELL | 21,756 | 166.70 | 243.67 |  | 
                    
                        
                            | 06/2011 | 46 | Dell Xanadu 3 Cluster, Xeon X5660 2.8 Ghz, QLogic InfiniBand QDR | DELL | 21,756 | 166.70 | 243.67 |  | 
                    
                        
                            | 11/2010 | 40 | Dell Xanadu 3 Cluster, Xeon X5660 2.8 Ghz, QLogic InfiniBand QDR | DELL | 21,756 | 166.70 | 243.67 |  |