Can I use my current PSU?

SPORTY98WHIT

Honorable
Feb 7, 2014
5
0
10,510
So i am thinking of buying a geforce gtx 660 and it says that the minimum PSU wattage required is 450W. My current PSU only is 300W. Would I still be able to use the graphics card on my current setup without having to get a new PSU?