Is my psu good enough?

[Lathishment]

Okay,so this is my first PC. Build and I am not sure whether the current PSU can support the systems needs. I planned on getting the r0 270x but decided to just pitch in a little more for the 280x since it wasn't that much of a price difference. http://pcpartpicker.com/user/Lathishment/saved/2JQQ

 

[IAMEXTREME]

Yes corsair 500 is perfect for the 280x.