No, they don't use any appreciable difference in electricity at a given load level for a 450W unit vs a 750W unit. You will have some minor variance as efficiency changes throughout the output range, but it should be within a few percent. Most modern supplies can do around 80% throughout the entire range though.
> -----Original Message----- > From: [EMAIL PROTECTED] [mailto:hardware- > [EMAIL PROTECTED] On Behalf Of Scott Sipe > Sent: Friday, May 16, 2008 9:26 PM > To: hardware@hardwaregroup.com > Subject: Re: [H] Do I have really bad luck? PSU? > > One thing I've never been sure of--do the power supplies with higher > wattage automatically use more electricity? ie, at the same load > level, how much electricity is a 450W going to use versus a 750W? > > Scott >
