Bad thing about 80+ PSU?

[LemurWithAFemur]

I have an 80+ white PSU and i never knew the difference between that and bronze. Any help?

 

[ryguybuddy]

http://www.corsair.com/en-us/blog/2012/august/80-plus-platinum-what-does-it-mean-and-what-is-the-benefit-to-me

Here is a guide.