Coolermaster Silent Pro Gold 1000W vs Silent Pro M1000W

[Neurosis]

Hi guys
Does anyone know the difference between these two power supplies?
Is the Gold edition the better PSU. I can't seem to find the answer to this

 

[saint19]

Hi.

Check this article: http://en.wikipedia.org/wiki/80_PLUS you can find the asnwer there. The Gold is much better that Pro M.

Now my question: Why do you need a 1000W PSU?, Corsair or Seasonic has some better PSUs on the same range.