Do modern PC's consume a lot of Power?
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blaaislaai
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A gaming machine with maybe 750w+ PSU with dual GFX cards, will definitely rack up more electricity than a standard office PC.
All depends on the internal components.
Power-save in Windows 7 basically just lets your CPU run slower than it should like limiting max usage %,turns off some functions and limits other hardware.. all depends on the PC; thus consuming less electricity but that "power plan" is more effective on a laptop as you need that when running on battery
All depends on the internal components.
Power-save in Windows 7 basically just lets your CPU run slower than it should like limiting max usage %,turns off some functions and limits other hardware.. all depends on the PC; thus consuming less electricity but that "power plan" is more effective on a laptop as you need that when running on battery
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AlienTaker
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Like Ike said to many variables i for one have a full 5.1 system on my pc with a full HD LDC screen with built in sound and Tv card and i've noticed running a normal LCD compared to the other screen uses more power, my pc runs 24/7 365 and because i'm on prepaid meter i tested this to work out when i went on holiday.
but on avg pc's do not consume that much power compared to something like a kettle or toaster or your fridge and geyser
AlienTaker
Whale Masseur
Well like i said there is a power consumption influx going from desktop stereo speakers or headphones to my full 5.1 system because that built in amp/converter in the sub likes power and the louder you go the more juice it uses(it think on that one one i may stand corrected on the power usage when it comes to loudness and amps)
HavocXphere
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Depends on load. Mine idles at ~100W which is crazy low compared to older PCs.
That quadruples if the PC is under load though...graphics cards in particular shoot it skyhigh.
I'd agree with the others though. You can take reasonable measures on the PC front but don't worry too much. Worry about other stuff instead:
On the whole anything in the house that heats or cools something murders the electricity bill. Underfloor heating, Aircon, geyser, heaters, stove, oven, kettle toaster etc. Also...pool pump.
That quadruples if the PC is under load though...graphics cards in particular shoot it skyhigh.
Size of PSU has no effect on actual draw....just max possible draw. e.g. the 100W idle mentioned above is on a 800W PSU.
I'd agree with the others though. You can take reasonable measures on the PC front but don't worry too much. Worry about other stuff instead:
On the whole anything in the house that heats or cools something murders the electricity bill. Underfloor heating, Aircon, geyser, heaters, stove, oven, kettle toaster etc. Also...pool pump.
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The man speaks the truth. While your PC is idling, it really uses very little power, between 100 and 150 W. We pay around 65c/kWh, so leaving your PC on at idle while your at work (say 9 hours) costs you 87c.
(150 W = 0.15 kW * 9 hours = 1.35 kWh * 65 c/kWh = 87.something c)
For a comparison, boiling 500 ml (two cups) of water for your morning coffee takes 177.65 kJ to heat the water and another 112.8 kJ to partially boil it. (Completely boiling it would mean everything turned to steam!) This is equal to about 0.081 kWh, which costs 5.3 c.
Running a very efficient (200% efficiency factor) 24 000 BTU aircon at half tilt for just an hour uses 1.76 kWh, or R1.14.
So long as your computer isn't left crunching big numbers or rendering 24/7, the amount of power it uses is very negligible.