For example, the NVIDIA GeForce GT440
The Power Supply – Before you run out and buy an NVIDIA video card, you need to know how big your power supply is in watts. Different video cards will require that you have a minimum number of watts power supply. So open your computer, if you are comfortable doing that, otherwise, find someone who is.
Look on the label on the power supply for the number of watts it is rated. It may say something like 300 watts, 450 watts or higher. Once you know the watts, then you can select a video card that will work with your power supply.
For example, the NVIDIA GeForce GT440 will work fine with a 300 watt power supply. But, the GeForce GT580 will require a minimum of a 600 watt power supply.
This is why you need to know your computer’s power supply size before you run out and buy a video card. You don’t want to use a video card that your power supply can’t handle. For example, if you decide you really want a GeForce GT580 video card and you only have a 300 watt power supply, then you will need to upgrade your computer’s power supply.
If you don’t want to bother upgrading your power supply, then make sure you stick with a video card that will work with what every the size of your power supply is.
In the chart above, we list a minimum power supply size needed for the each video card. This list above are based on NVidia’s web site recommendations.
If you don’t want to bother upgrading your power supply, then make sure you stick with a video card that will work with what every the size of your power supply is.
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