FlyerTalk Forums - View Single Post - How to shut down cores in a dual core proc?
Old Feb 1, 2008 | 4:40 pm
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nkedel
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Originally Posted by glob99
This is incorrect. The processor is built on a CMOS process. Power is consumed when the logic changes state, ie froma 1 ->0 or 0-> 1 transition. You turnoff the clock to the CPU and it will draw negligible power.
Processors are built on processes that are long-ago derived from CMOS, but it's not that simple. Look up "leakage current." Which process generation makes a difference - some of the older "recent" models (the Prescott Pentium 4s) were particularly bad about this.
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