There are different types of PSU and cabling. This indicates that the PSU will waste less energy than other units making it cheaper to run and much more reliable. Efficiency is important so look for PSUs that have the 80 Plus certification.
For example, a high end gamer will require a far higher wattage than a home user who surfs the net and does some word processing.īut it isn't all about the wattage. Very simplistically speaking the more demands you place on your system the higher the wattage of the PC power supply unit should be.
This output is listed as watts and should be greater than the combined wattage of all the components in your system plus 40 to 60%. When choosing a PSU the output is very important.
Firstly, ensure you select a PSU from a reputable manufacturer.