Why buy a 80 plus gold powersupply?

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OleBrumHonning
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You have 80 plus platinum, gold, silver and bronze powersupply. When do i need the different type of powersupply?

I guessing 80 plus bronze when i only use mail, word etc and platinum when i am gameing?

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PM_DMNKLR
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Actually, the difference between each level of 80 Plus is the efficiency factor. The higher the metal ranking (bronze, silver, gold, platinum, in that order), the better the efficiency of the PSU will be. It also will help you to determine the level of cleanliness of the current being dished out to your pc's hardware. You can use any of those levels of 80 Plus PSU's and be just fine, but the higher end your other hardware (such as if you're using high-end GPU's like a GTX680 or HD7970), the more you're going to want the current to be pure, but it also will help you to conserve energy coming from your power outlet in the process. I don't use any non-80 Plus PSU's, now that I've seen the difference. They're great. I'd recommend either a Corsair or Cooler Master branded model, btw, just as a suggestion.

Razear
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The greater rating accounts for higher efficiency which means lower power consumption and less heat. You'll also save money on your energy bill.

marijanovic
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Lets say a PC consumes 300W from the PSU.
The 80% efficient PSU would draw 375W from the wall.
The 85% efficent would draw ~ 353W.
And the 90% efficient one would draw 333,33W.
That is the point of 80% efficiency and bronze, silver, gold and platinum cerfticifation.

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david179057
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ncixcom has a vid here (hope you dont mind 3gm)

http://www.youtube.com/watch?v=5vnXNyh9vIg

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OleBrumHonning
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If i buy a 80 plus gold that have higher efficiency which means lower power consumption and less heat than a standard powersupply, i can buy a 700w instead of a 800w?

marijanovic
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Your PC (components) dictate how strong a PSU you need.

Allen86
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Well, really it depends on the quality of the unit, not so much directly linked to the efficiency rating. You shouldn't need 800watt PSU unless you're running a dual high end GPU setting. At the very least, get a 80 plus bronze unit. Anything over that just depends on your budget, gold units are much more expensive. If your budget isn't a concern, go ahead and grab a gold unit, they run alot cooler, are typically top notch quality from certain vendors (PC power and cooling, Corsair, Seasonic, Antec) and will save you a few bucks a month.

If you need help determining what size unit you need, list your system specs and budget for a PSU.

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3dGameMan
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80+ Gold PSU today is common place today. Remember, there are Platinum PSUs out now and Titanium PSUs on the way: http://www.3dgameman.com/q-and-a/420/80-plus-titanium-certification

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