Not different. Although that is what all the DNA testing is about. They want to find the 'elite' gene that would make them special. Unfortunately for them, it was all the inbreeding that caused all their medical issues.
On a side note, they always wanted the best slaves for the job so they bred for superior characteristics in their slaves. Sadly for them, it made the rest of the human race physically superior.
If they could find a gene that defined them, they could blame genetics for all their degeneracy.