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Modules using Samsung's latest 3Xnm process are expected later this year
Lower power due to smaller process

DDR3 DRAM has just overtaken DDR2 as the predominant memory technology used in today's new computers. Newer RAM has traditionally been more expensive than previous generations, but DDR3 pricing has gone down over the last few years due to mass production and die shrinks to smaller process nodes. Not only does this result in price cuts, but also lower power consumption and higher possible speeds.

Samsung just started producing DDR3 on its 40nm process last year, but is already working on its newest generational node. The company describes it as being 30nm-class, but is generally acknowledged as being around 32nm. The process size refers to the average half-pitch of a memory cell. A smaller die size means that more dies can fit on a silicon wafer, reducing production costs. The company estimates the new chips will increase its cost-efficiency per wafer by sixty percent.
The new 2Gb chip can be used to create power-efficient 4GB modules operating at 1.35 volts. Samsung expects power savings of 30 percent compared to a similar chip produced on a 50nm process, with a 4GB module consuming only three watts per hour when used in a newer-generation notebook.

“Our accelerated development of next generation 30nm-class DRAM should keep us in the most competitive position in the memory market,” said Soo-In Cho, President of Samsung Electronics' Memory Division.

Mass production of the new chips is expected to start in the second half of the year, with volume ramping up for the busy holiday shopping season.

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By sld on 2/2/2010 9:26:06 AM , Rating: 2
Applying some dimensional analysis here (fancy term for making sure that the units being compared are relevant):

The unit called "Watt" is equivalent to Joule per second. To find out how much energy (in Joules) is being consumed for a given period of time, we convert that period into a quantity of seconds, and multiply it by the power rating (which is in Watts).

The unit called "Kilowatt-hour" is equivalent to "1000 * Watt * 3600 * seconds", since 1 KW = 1000 W and 1 hour = 60 mins = 3600 seconds. Therefore, 1 KWh is equivalent to 3,600,000 Joules, or simply 3.6 MJ. The point is that KWh and J are the same object expressed differently.

The reason why utilities like to use KWh instead of J is because J is a pretty small quantity. Since humans in this post-modern age guzzle electricity like Europeans guzzle beer and Americans guzzle debts, using KWh makes counting numbers easier for everyone.

I hope I've made things clear for the layman. Good day!

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