The xp_logininfo reports the Domain groups (or other valid SQL login) how the user is being granted access.

https://msdn.microsoft.com/en-us/library/ms190369.aspx

EXEC xp_logininfo 'BUILTIN\Administrators';

EXEC xp_logininfo 'Contoso\JSmith'

Result:

account nametypeprivilegemapped login namepermission path

Contoso\JSmithuseradmin ...

There is an evaluation "version" for each SQL Version (e.i. Developer, Standard, Entrprise, etc.)

And depends on the core version you can see at the link below, how many processor are...