Mine

# /etc/sudoers
#
# This file MUST be edited with the 'visudo' command as root.
#
# See the man page for details on how to write a sudoers file.
# Host alias specification

# User alias specification
User_Alias	ALLE = rene
# Cmnd alias specification

# Defaults

Defaults	!lecture,tty_tickets,!fqdn,insults

# User privilege specification
root	ALL=(ALL) ALL
rene	ALL=NOPASSWD:	/usr/sbin/radeontool

# Members of the admin group may gain root privileges
%admin	ALL=(ALL) ALL