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4Gbit DDR3 ups server energy-efficiency rating

Posted: 01 Mar 2010 ?? ?Print Version ?Bookmark and Share

Keywords:4Gbit DDR3? DRAM? memory?

Samsung 4Gbit DDR

Samsung Electronics Co. Ltd has begun mass production of a 4Gbit DDR3 devices using 40nm process technology.

Dong-Soo Jun, executive VP of memory marketing at Samsung, described the memory as an ultralow power Green Memory, claiming it had been optimized to enhance energy-efficiency ratings for servers seeking to comply with or exceed new Energy Star power consumption specifications.

Production of the 4Gbit DDR3 raises the amount of memory for use in servers to 32Gbyte per module, which is twice the maximum density achieved with modules based on 2Gbit components.

With the start of volume 4Gbit DDR3 production, Samsung plans to migrate more than 90 percent of its DDR DRAM production to 40nm process technologies.

Today, servers are equipped with an average of six registered DIMMs (RDIMMs) sockets per CPU, with which up to a 96Gbytes of DRAM capacity can be accommodated. A module based on 60nm 1Gbit DDR2 components consumes 210W, Samsung said, while a 40nm 2Gbit DDR3-based module consumes 55 watts. The 40nm 4Gbit DDR3-based module consumes 36W.

The 4Gbit DDR3 supports both 1.5V and 1.35V specifications. Available memory modules include 16- and 32Gbyte RDIMMs and 8Gbyte SoDIMMs with a 1.6Gbit/s data transmission.

- Peter Clarke
EE Times

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