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Old 2012-10-09, 20:12   #1
esakertt
 
Oct 2012

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Default power consumption

I am using Intel i7 M620 prosessor laptop in the gimps. I wonder how much energy it consumes in two months, with 25% processor capacity for the gimps.
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Old 2012-10-09, 20:19   #2
Dubslow
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Quote:
Originally Posted by esakertt View Post
I am using Intel i7 M620 prosessor laptop in the gimps. I wonder how much energy it consumes in two months, with 25% processor capacity for the gimps.
TDP is 35 Watts, though that doesn't necessarily conform to maximum power draw. It's a good order-of-magnitude estimate though; how much power one thread of Prime95 draws depends on whether or not the other hyperthread of the same core is in use. It's somewhere between 8-17 watts, so 15 is a good estimate; that's 15 joules/second, so 15*3600*24*60 = 78 megajoules, or 78 million joules, or 21.6 kilowatt-hours in power-company-units. That should be a good estimate to within approx. a factor of 3 or 4 of the "real" consumption due to GIMPS (i.e., this doesn't include power drawn by the motherboard/screen etc., that would be used when the laptop is on, regardless of GIMPS).
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