Dell Servers: New Generation of Server Efficiency
Targeting server power efficiency continues to be one of Dell's primary design objectives. The latest Dell PowerEdgeTM Servers consume up to 25% less energy than previous generations. When combined with impressive performance gains, this results in up to a 3X increase in performance per watt over previous generations. Dell also works closely with industry partnerships and alliances to bring to market new energy efficient technologies such as:

• High efficiency power supplies; reducing wasted power at lower workloads
• Variable speed temperature controlled fan technology; allowing fans to spin at reduced speed when environment allows
• Small form factor hard drives; saving up to 7 watts per drive over larger 3.5" units 
• Low voltage processors with power management tools; allowing operating systems to dial down power draw during non-peak times

Dell Desktop: Thermally Optimized
Dell’s versatile OptiPlex line of performance desktops were built with energy efficiency in mind. Innovations designed into the OptiPlex series, when configured with Intel® CoreTM 2 Duo processors and flat panel displays, allow the OptiPlex 745 to use up to 70% less power than previous generations of OptiPlex desktops, dramatically cutting consumption down.

• With new Energy Smart configuration OptiPlex default power settings exceed the worldwide mutually recognized Energy Star standard, which means that each desktop is designed to further reduce power consumption and energy costs, right out of the box. 
• Innovative BTX chassis is designed specifically for thermal effectiveness, maximizing the OptiPlex’s internal HyperCoolTM fan’s performance. 
• Power Factor Correcting power supply and motherboard use significantly less energy to maintain ideal, cooler internal operating temperatures.

Dell EqualLogic iSCSI SAN: Built for Virtualization
EqualLogic storage technology virtualizes the entire storage area network (SAN) to simplify deployment and ongoing management. In the SAN, volumes are automatically provisioned as a single, scalable pool of storage that leverages all storage resources within the SAN. Even as workload demands shift or migrate between virtual machines and their physical host servers, a virtualized PS Series SAN automatically applies storage resources where and when they are needed without intervention or manual tuning.