The biggest differences are the system, apparently completely computerized, the security measures and the time it will take to obtain it (supposedly 10 days).
These are some pictures of the current DNI. It's a handwritten booklet that never expires. Some people have the original one, with their picture taken over 40 years ago, absolutely no security whatsoever, i even met a person once that had accidentally left his on a pair of pants that went into a washing machine...and he was still using it.
Personal ID Page (the layout changed over the years)