Whether it is calculating battery life for a portable application, planning cooling for a desktop, or determining the power supply for a server, an accurate power budget for the memory is essential.
That's why we've created the Micron System-Power Calculator for all of our SDRAM devices. A system designer can use these models to accurately approximate the power requirements of SDRAM in a system environment, as well as experiment with various memory access schemes to determine the impact on power consumption.
These tools provide an easy method for estimating the memory power requirements needed in making important system architecture and design decisions. With an accurate estimation of power consumption, the system designer can quickly handle complex system trade-offs to optimize the system performance.
For more detailed information on DDR, DDR2 and DDR3 system-power calculations, see the following technical notes:
For information on Mobile SDR/DDR system power calculations, see 
TN-46-12 "Mobile SDRAM Power-Saving Features and Power Calculations."
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