Posted 09 October 2008 - 01:12 PM
Posted 09 October 2008 - 02:08 PM
2: The determining factors are system requirements and how you set your system power saving options. Newer CPU's draw considerably less power then older ones. Advanced video cards can take a lot of power. If we take the hardware needs as a given constant then the way you set power options is important. The options are set in Control Panel. At least as important is to switch your computer off when you finish your work. Many people leave the computer running all the time for no apparent reason. I could never understand why they do that.
Posted 09 October 2008 - 02:13 PM
basically the energy efficient PSUs are more.....efficient (duh)...so they waste less electricity during the conversion from AC power to DC power which also reduces the heat that they generate which means the fans they use can be smaller and more efficient and you don't have to worry about the computer heating up the room that it's in so you can use less air conditioning in the room. also since they're more efficient they last longer
also here's an online savings calculator thingie
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