Oh you should see TheDonald , they wanted to petition to fire the fucking creator of the website they use everyday . What the fuck . <| sep |> He ' s frankly lucky he still has a head . <| sep |> Was it free range ? Did it give its life willingly ? <| sep |> I ' m 99 % sure there ' s a 24 of that beer out of frame . <| sep |> Math isn ' t your strong suit is it ? A 250 w Draw on a 500 w Bronze PSU 50 % utilization and 85 % efficiency would give you 287 . 5 w at the wall . An equal pull off of a 1 kW Bronze 20 % utilization and 82 % efficiency would use 295 w from the wall you would need a 1 kW Gold to beat the 500 w Bronze with 282 . 5 w a 1 kW Silver would only match it , but at a significantly higher cost . Furthermore , to quote your own source To qualify for 80 Plus , a power supply must achieve at least 80 % efficiency at three specified loads 20 %, 50 % and 100 % of maximum rated power . However , 80 Plus supplies may still be less than 80 % efficient at lower loads . For instance , an 80 Plus , 520 watt supply could still be 70 % or less efficient at 60 watts a typical idle power for a desktop computerEmphasis mine and page 4 . html is their source . While 7 . 5 w might not sound like much , if you ' re talking a server that ' s in operation 247365 for even a year that equates a savings of about $ 10 at my average kwh cost of ~$ 0 . 15 on top of the PSU costing less initially .