Introduction
Samsung's Green DDR3 memory is designed to enhance energy efficiency and performance in modern computing platforms. It offers significant power savings and improved performance compared to previous DDR2 technology.

Specifications and Benefits
The 30nm-class, 4Gb DDR3 memory provides up to 1.6Gbps bandwidth and operates at a low voltage of 1.35V, resulting in an 86% power savings over 60nm-class, 1.8V DDR2 memory. This translates to a 44% power savings at the server level, allowing for higher density servers and reduced energy consumption.

Impact on IT Infrastructure
By using Samsung Green DDR3, data centers can increase server resources by 86% without increasing the power budget. This results in significant Total Cost of Ownership (TCO) benefits, such as reducing the number of racks needed and cutting overhead costs.

Environmental Impact
Replacing existing servers with those using Samsung's Green DDR3 can save approximately 95 terawatt-hours of power annually, reducing CO2 emissions equivalent to removing over 13 million cars from the road.

Applications in PCs
Samsung Green DDR3 is also beneficial for PCs, offering up to 67% power savings at the module level when replacing older DDR2 technology. This is crucial as the number of PCs is expected to reach 2.25 billion by 2015.

Technical Features
Samsung Green DDR3 supports data rates up to 1.86Gbps, offers more than 86% power savings, and is compatible with low-voltage platforms. It features DQ shielding, self-calibration, and fly-by topology for improved signal control, and is made with halogen-free and RoHS-compliant materials.

Comparison with DDR2
DDR3 offers higher prefetch bit width, lower supply voltage, and dynamic on-die termination compared to DDR2. It supports various module types and densities, providing flexibility for different applications.

Conclusion
Samsung's Green DDR3 memory is a key component in building energy-efficient, high-performance computing platforms, offering substantial power savings and environmental benefits.