How many wattage for computer

Why should I use the calculator to find a power supply? What are some of the top PSU brands that I can buy? How do I know that the PSU is the right size? Where can I get news about power supplies? How do I know which power supply to buy? Motherboard — Be sure you know what kind of motherboard Desktop, Server, Laptop, etc. This is a critical component of your calculations because almost everything within your build plugs into and derives power from the motherboard.

Higher-end parts generally use more power. For example, discrete video cards require far more electricity than integrated graphics processors. Your computer also uses more power while processing more complex information, so tasks such as encoding audio or video or playing games will increase power use compared to typing a document. When buying a power supply unit for a desktop computer, choosing one that only meets average power requirements may not be enough.

The first problem is that they count individual users' computers , even though those computers don't power the net. Further, even if there were no Internet, office employees would still use computers all day like they did before the Internet. And for home users, if someone's not on the Internet, they're probably watching TV, which uses even more energy. So personal Internet use isn't "new" energy being used.

Finally, I think UClue is overestimating the amount of energy used by end users' computers in the first place. And their link to their source for that figure is dead. So taking personal PC's out of the picture and looking only at the energy to run the datacenters including the costs to cool them , UClue's figure drops to only 1. We should also consider how much energy the Internet saves us. For starters, take a look at this website; thousands of people have used it to learn how to reduce their consumption.

That's nothing to sneeze at. And online shopping means you can buy stuff from your home without driving somewhere, meaning more energy savings. Online maps let us find our destinations easier with less driving, too.

Then there's the fact that email lets us send messages and documents without requiring a fossil-fuel vehicle to physically deliver the hardcopy. So the Internet's share of energy use should be certainly be contrasted with the amount of energy it saves. Now let's talk about the electricity to power websites.

If you had to have a separate computer to host each website, then we'd have a big energy problem, but fortunately that's not how it works. A single computer server can host hundreds or even thousands of websites. In fact, that's what made websites affordable to the masses in the late 90's. If you had to rent the whole computer from your host then the cost would be astronomical. But your site is on the same server with lots of other folks' sites, which is why they call it shared hosting.

By contrast, dedicated hosting is when you rent an entire server for yourself. But even then, you can put dozens or hundreds of sites on your server, as I've done with mine. And for my server, I chose a host that purchases carbon offsets to offset the pollution caused by generating the electric to run the server, which is why you see the "This site is green" logo on the bottom of the page. The very largest sites Google, Yahoo, eBay require multiple servers just to run their one site.

But those sites are used by millions of people every day. The energy use on a per-person basis isn't that great. Also, the largest companies have been taking bold steps to reduce their energy footprint. For example, in Google built a massive 1. It's the largest corporate solar install in the U. There are larger installations at utility companies, but this is the biggest for a company generating its own electric.

Google has a page where you can see how much electricity they generated in the last 24 hours and the last 7 days.

You can also see a flyover video of their installation. The system will take 7 years to pay for itself, and then will generate free electricity for another The lifespan of the panels is about 25 years. It doesn't end with this huge installation. In late Google announced its plans to develop a whopping one gigawatt of energy from renewable sources at a cost cheaper than coal, and to do it "within years, not decades".

Yahoo is also addressing its energy footprint. Power Use Watts : Enter the average power consumption of the device in watts. Price kWh : Enter the cost you are paying on average per kilowatt hour, our caculators use the default value of 0. To find an exact price check your electricity bill or take a look at Global Electricity Prices. To save energy turn off your computer when it is not being used or enable power saving features such as hibernate, standby or sleep mode.