Will a Radeon r7 260x run on this PSU?

[wonkawoo]

I am planning to upgrade my GPU soon and was wondering if a PSU upgrade was mandatory to get this card running.
My PSU: http://www.evga.com/Products/Product.aspx?pn=100-N1-0400-L1

 

[CTurbo]

It's enough power, but not a very good quality. I would be looking to upgrade it