[Carl]

title speaks for itself , i want to get a graphics card and a new case and since bigger wattage PSUs are bigger which means the case is bigger, and more exspensive.I wanted to know how do you calculate/know how much watts your computers and it components are using? Is there any software for it?

Thanks alot for any help.

[thingie2]

One of the easiest things to do is use a calulator like this one, however it's not 100% Another way to do it is to get a power meter and plug it in between the wall socket and the computer plug, then lake off times that value by about 0.8 and that should be around the ammount your PC is using.