| URL: | |
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| Segment | Industry | 
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| Country/Region: | United States | 
| System | Year | Vendor | Cores | Rmax (GFlop/s) | Rpeak (GFlop/s) | 
|---|---|---|---|---|---|
| xSeries x3550 Cluster Xeon QC HT, 2.5 GHz, GigEthernet | 2009 | IBM | 4,688 | 21,566.7 | 46,880 | 
| xSeries x3550 Cluster Xeon QC HT, 2.5 GHz, GigEthernet | 2009 | IBM | 4,688 | 21,566.7 | 46,880 | 
| xSeries x3550 Cluster Xeon QC HT, 2.5 GHz, GigEthernet | 2008 | IBM | 4,344 | 19,984.1 | 43,440 | 
| xSeries x3550 Cluster Xeon QC HT, 2.5 GHz, GigEthernet | 2009 | IBM | 3,968 | 18,254.4 | 39,680 | 
| xSeries x3550 Cluster Xeon, 2.333 GHz, GigEthernet | 2008 | IBM | 2,376 | 11,725.3 | 22,172.8 | 
| xSeries x3550 Cluster Xeon, 3 GHz, GigEthernet | 2007 | IBM | 1,464 | 8,851.7 | 17,568 |