Is there a difference between a manual and an automatic grinder? Is there any notifiable difference between coffee beans grinder by an automatic grinder or a manual grinder like a hand-crank?

I see many people to swear on their manual grinder (me too) but I'm curious if there may be some difference. In many coffee shops there is an automatic grinder which puts a kilogram of coffee through in a few seconds. 

I have the temperature in mind. Maybe this change the taste of the coffee?
The most important differences I think, are time and temperature.

I really don't know much technical details about grinders, but as @luser-droog said, friction will create heat and it will affect the coffee (so, motor grinders can be affected by this if doesn't manage heat dissipation well)

And of course, in all cases, time matters; so, time might be a crucial factor for someone.