At the bottom of this page it shows the differences for basic, gold platinum & diamond where creating tournaments are concerned
http://www.chess.com/tournaments/help.html#membership
Other than that, in groups gold & above have the same super admin tools.

Hello, to anyone out there. I'm interested in upgrading my membership so that I can do more as a Super-Admin. What I need help in is choosing between, Diamond, Platinum, or Gold membership.
Each of the three types of memberships say that you can create and manage your own group. Are they all the same with regards to managing groups? Do the three have any differences? Particularly, does one membership allow the ability to create a tournament while others do not? Are more "buttons" available to the higher memberships?
Thank you to anyone who can help me out on this. --- Cheryl88