Does a 20w power difference matter in graphics cards?

I want this one card the uses 450w and I have a 430w psu Sucky i know


will it work?

Does a 20w power difference matter in graphics cards?
If it causes a 20 watt shortage, then yes. There are a few wattage calculators online that you can use to enter in your systems specs and see what your requirements are. If that says you are under 430...then you are good. It also doesn't hurt to have more than you need. If you need 430 and you are using a 430w supply, not only are you maxing out your suply and making it work hard, but you are then subject to power fluctuations that could potentially reduce the wattage and cause issues. If you are using 430 and have a 450 or a 500w PS, then you are not taxing your power supply as much and ther is some wiggle roomon the output. it also gives you some room for expansion.
Reply:if your graphics card uses 20W more then your power supply can give, where will the cpu get the power it needs? so, no.
Reply:Well i would actually go with the higher watt PSU because if u don't you could over heat your computer very fast...So try going to buy a higher watt and then your computer can run smoother and you don't need to worry