I think you learn Physical too much, LOL.Originally posted by: cusideabelincoln
Do people not even read what I wrote?? The heat output difference is INSIGFICANT! And the "extra heat" has different effects depending on where you live Do the world a favor and turn off your PC, or put it in standby, when you're not using. Doing this will make heat output a non-factor. But, if people insist on bringing this up I'll just try to do a quick estimate...
q=mcdeltaT
The amount of (q) required to raise the room temperature from 22.22C to 22.77 (1 degree F), is. Density of air is about 1.2 kg/m^3. In a 8mx4mx4m room, there would be 153.6 kg of air. In a 6 room house, that's 926.1 kg.
q = (153,600 g) * (1.012 J/g-K) * (0.55 K) = 84593 Joules, x6 = 507558 J for the whole house
To raise the temp 1 degree F for a house over the span of an hour (time the computer would be turned on) would require 141W. Over half a day would require 11.7W
The TDP of a Q9450 is 95W and the Q6600 is 105W. That's a 10W, or 10 J/s, difference. So in about half a day, the average time the computer should be on or in use, the Q6600 should put out enough heat to raise the temp of a house by 1 degree F more than what the Q9450 would. (43200 seconds in 12 hours, 10W * 43200 = 432000 J more output of the Q6600 over the Q9450. Since it takes 500,000 J to raise the temp of a house by one degree, I can say it would take the Q6600 about half a day to raise the temp of a house one degree more than what a Q9450, under the same operating conditions, does.)
If you google it, most energy saving tips say if you turn your AC up (or heat down) by one degree you'll save an average of 2% on your bill, assuming the units run 24/7. Since I'm only assuming the computer is staying on half the day, we can estimate the extra cost of the Q6600, raising the temp in the summer by one degree more than a Q9450 would, to cost you 1% more on your bill. Say your bill is fairly high, $100/mo, and you would spend an extra $1/mo on your bill, or $12/yr. That's $24 over 2 years if you live in a place that uses AC year-around. If you live in a place that gets cold, then the Q6600 wouldn't hurt your electric bill over the course of a year, since you'll run AC for half the year and heat for the other half and the extra heat output by the Q6600 would cut the need for a heater's output.
All of these numbers are estimates, and I think I fairly assumed and over-estimated standard operating practices and costs.
The most important is Price/Performance , not about 10W and 1F difference. If u turn your Air Conditioner increase or decrease 1Celsius, it's make a vary of energy change than difference of two CPU.
In my opinion, E7200 and Q6600 is the best p/p. If you use your computer for only HDTV task, E7200 is enough. But with quad-core, Q6600 has more powerful. In this case, if you have more than 180$, you should take Q6600, and if you aren't enough money, take the Peryn E7200