The Fujitsu Celsius R Series can handle up to 96 GB of memory, a large amount for a workstation. It uses SLI to support two high-end graphics cards. It has Energy Star configurations, meaning it can be setup to save energy and money in the long run. The Celsius R Series was designed and optimized for intensive applications such as computer aided engineering, electronic design automation, virtual reality, geographical information systems, and visualization. It comes with Windows Vista Business and has four different models available.