Download speeds on wired connection

I have a new dual band router. I have a desktop hooked up "wired" and then I have a couple of laptops going wireless.

I ran some download tests on all, my desktop (wired) is getting 30 Meg and the laptops are at 55 Meg...

Makes no sense (to me) that a wireless would be faster...

Also saw someone post about getting over a 100 because they used the "5 Ghz" on wireless.. confused