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rick merritt
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re: Researchers carve CPU into plastic foil
rick merritt   11/23/2010 4:47:45 PM
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I checked the abstract again and all the numbers are correct. Here it is: "The Intel 32nm Poulson processor contains 3.1 billion transistors integrated onto a single 544mm2 silicon die size. Eight processor cores and a total of 54MB of on-chip cache are linked by an on-chip ring-like interconnect bus."

bmws88
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re: Researchers carve CPU into plastic foil
bmws88   11/23/2010 4:04:27 PM
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I calculated 2.7B instead of ~2.6B because I used 1MBit=1024*1024=1.049 million cells. Either way it does not make too much difference. For comparison, the 45nm Xeon 7500 (aka Nahalem-EX) had 2.3B transistors and a total of 26.5 MB of cache which leaves about 1B for other things, much more reasonable.

DrQuine
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re: Researchers carve CPU into plastic foil
DrQuine   11/23/2010 4:00:29 PM
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It is interesting that a simple CPU captures our imagination at the same time that an extremely complex one is rolling out. I suspect that it is because small numbers are easier to grasp than large ones - and because we can appreciate that a device built with simple materials and a simple architecture has the potential to be incorporated in unexpected ways in existing products.

krisi
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re: Researchers carve CPU into plastic foil
krisi   11/23/2010 3:50:28 PM
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@pixies, Polymer is a solid state material, although it is not semicondcutor so everything is good with the ISSCCC name! BTW, everything can be a solid state (if the temperature is right ;-) so they selected pretty general name...Kris

krisi
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re: Researchers carve CPU into plastic foil
krisi   11/23/2010 3:47:18 PM
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@bmws88, you seem to be right, something is not adding up here: 54MB times 8 times 6 is about 2.6B transistors already...Kris

bmws88
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re: Researchers carve CPU into plastic foil
bmws88   11/23/2010 3:38:29 PM
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Intel uses 8T SRAM for lower level cache. Assuming all 6T, 54MB of cache would have a SRAM cell transistor count of 2.7B already. That leaves only 0.4B for redundancy, cache peripheral, and the 8 cores. Do the numbers add up right?

pixies
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re: Researchers carve CPU into plastic foil
pixies   11/23/2010 3:36:28 PM
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Polymer is not a solid state material. I guess in the future the conference has to change its name.

yalanand
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re: Researchers carve CPU into plastic foil
yalanand   11/23/2010 12:31:57 PM
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What is this polymer CPU is all about. Really curious to know how it functions and how it will be useful in future. Anybody has any detailed info ?

Kinnar
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re: Researchers carve CPU into plastic foil
Kinnar   11/23/2010 7:30:54 AM
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So many different variants are going to flood the market, but the polymer CPU is something very interesting, it seems that the flexible and fold-able PCs will be there in a near future.

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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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