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> The Ultimate Overclock
Jack Spratt
post Jun 22 2006, 18:09
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IBM and Georgia Tech have coaxed a chip to run at 500GHz, a record for a silicon-based device, by dropping the temperature to minus 451 degrees Fahrenheit.

The experiment is part of a project to explore the ultimate speed limits of silicon-germanium (SiGe) chips. SiGe chips are similar to standard silicon chips, but they also contain germanium for better performance and lower power consumption.

Adding germanium, however, increases the price of producing wafers and chips that come out of the wafers, so SiGe chips are typically only found in a few select markets. IBM has sold hundreds of millions of SiGe chips since it began selling them in 1998, but the cell phone industry gobbles up billions of plain silicon chips annually. (Germanium is sprinkled into standard silicon chips: Intel adds minute amounts of the element to create strained silicon in its processors).

At room temperature, the IBM-Georgia Tech chip operates at 350GHz, or 350 billion cycles per second. That's far faster than standard PC processors today, which range from 3.8GHz to 1.8GHz. But SiGe chips can gain additional performance in colder temperatures.

To that end, IBM and Georgia Tech scientists turned down the temperature and cryogenically froze the chip at minus 451 F. It's about as cold as things get. An extremely cold temperature like that is found naturally only in outer space, but can be artificially achieved on Earth using ultracold materials such as liquid helium. Absolute zero comes at minus 459 F.

SiGe chips, the scientists theorized, could eventually hit 1 terahertz, or 1 trillion cycles a second.

Ultimately, high-performance SiGe chips could be used in defense systems, space exploration vehicles and remote sensing. Conceivably, you could also build a computer for Ted Williams and other cryogenically frozen celebrities.

Source: Cnet News

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Cataclysm=J
post Jun 22 2006, 21:59
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Now imagine the size of the CS/BF2 server you could run on that beast.


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Jack Spratt
post Jun 24 2006, 12:54
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ph34r.gif
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Crouching tiger
post Jun 26 2006, 23:53
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i want one! blink.gifblink.gifblink.gif
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foru
post Jul 4 2006, 8:59
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thanks

This post has been edited by foru: Jul 4 2006, 9:01
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Sureshot
post Jul 4 2006, 12:37
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QUOTE(foru @ Jul 4 2006, 9:59) *

thanks


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Spartan Mitzi
post Jul 18 2006, 23:04
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how great would it be if this forum allowed AVATARS! smile.gif


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Cataclysm=J
post Jul 18 2006, 23:21
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We have avatars.


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