Disclaimer: All efforts have been made to ensure the accuracy of all information provided by this calculator. WePC assumes no liability, expressed or implied, for any issues that might arise from the power supply suggested by the PSU Calculator.
If you’re new to PC building, the chances are, your knowledge of components wattage is going to be fairly limited. Using a PSU calculator is going to take any of the stress that comes with choosing the right PSU away from the build process. It not only recommends the required wattage for your build, but it also offers up some of the best PSU options for each specific price point. The PSU calculator really does make your life a whole lot easier.
The most important components in a gaming PC are the CPU and GPU. But these components, just like all the others, need adequate power to operate. If your power supply can only provide 80% of the power your GPU needs, it can’t just simply run at 80% performance. Instead, the system will be unable to run at all and will likely crash.
So, if you’re working with a PSU that can’t support the rest of your build, all that hard work you put into building your gaming PC will be for nothing.
But, that’s not all. If you’re working with an unstable power supply, you run the risk of damaging your components permanently. That’s why we always recommend choosing a PSU that has a higher efficiency rating.
One thing to remember, as with all PC components, you can always choose to upgrade your PSU. If you ever choose to upgrade your GPU, upgrading your PSU should be a priority too. You need to make sure you’re giving your GPU as much power as it needs to run properly, and you might even need to provide more PCIe power connections than your current PSU can provide – depending on the model.
But, don’t worry, upgrading your PSU is fairly simple. You just need a screwdriver, some cable-management love, and patience. If our PSU calculator has told you that you need to upgrade, then all you need to do is follow these simple steps.
The best power supply for your PC build is the one that provides the right amount of wattage to all components simultaneously. Manually calculating this requires that you multiply the total amps of all components by the total volts of all components. The result is the total watts that your PC build requires. If you input all the components of your PC build into our calculator, it will do this for you and provide a list of options.