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DDR3 SO-DIMMs offer high power-savings

Posted: 31 Jan 2008     Print Version  Bookmark and Share

Keywords:DDR3  notebook PC  SO-DIMM module 

Qimonda AG announced it has shipped samples of 1Gbyte and 2Gbyte DDR3 SO-DIMMs to key customers for deployment in next-generation notebook PCs.

The company has optimised its new DDR3 SO-DIMM offerings for high power-savings, the announcement said. Power efficiency is the key value proposition of the new DDR3 memory interface in mobile computing, as it allows for extended battery life at higher performance levels for notebooks and other mobile computing applications.

"Qimonda's 1Gbyte and 2Gbyte SO-DIMMs enable customers to make full use of the significantly reduced power consumption and increased bandwidth of DDR3," said Michael Buckermann, VP of business unit computing at Qimonda. "Qimonda is fully supporting its customers' launch of next-generation mobile computing applications, with DDR3-based notebooks expected to be introduced to the market in the first half of 2008."

The SO-DIMM modules consist of 1Gbit DDR3 components manufactured by Qimonda in 75nm technology and promise a significant reduction in terms of power consumption, as they take full advantage of DDR3's 1.5V supply, compared to 1.8V with DDR2. By incorporating additional optimisations, the new DDR3 SO-DIMMs reduce the power consumption by at least 30 per cent and up to more than 50 per cent compared to today's mainstream DDR2 modules, depending on the SO-DIMM capacity, the company said.

The Qimonda DDR3 SDRAM devices offer data transfer rates of up to 1.600Mbit/s. This doubles the maximum data transfer rates of today's DDR2 memories, and significantly boosts the performance of PCs, mobile and server systems.

The DDR3 SO-DIMMs are based on DDR3 1Gbit components, which have been jointly developed by Qimonda and its partner Nanya Technology Corp. They support new functionality to permit its high processing speeds, such as Dynamic ODT, which enhances signal integrity on the data bus required to run two DIMMs per channel at very high data rates. The Calibrated Driver Impedance optimises the impedance of DDR3 SDRAM output drivers. In combination with reduced interface parasitics, read and write operations on the data bus make very high transfer rates possible.




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