power consumption

[esakertt]

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.

[Dubslow]

Originally Posted by esakertt

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).