Sites Cray XT3, 2.6 GHz dual Core
| Site | Atomic Weapons Establishment |
| System Family | Cray XT |
| System Model | Cray XT3 |
| Computer | Cray XT3, 2.6 GHz dual Core |
| Vendor | Cray Inc. |
| Application area | Defense |
| Installation Year | 2006 |
| Operating System | UNICOS/Linux |
| Interconnect | XT3 Internal Interconnect |
| Processor | AMD x86_64 Opteron Dual Core 2600 MHz (5.2 GFlops) |