The primary difference is that an entrepreneur owns the business, he can hire a manager to take care of its operational needs.
A few more differences are:
Entrepreneur gives the idea and implements it.
Manager implements other(Entrepreneur's) person's idea(s).
Entrepreneur is a leader.
Manager is a coordinator.
Entrepreneur owns the business.
Manager(s) dont own, they just manage it..
An Entrepreneur hires manager(s).
No manager can hire an Entrepreneur.
Entrepreneur builds the organization from scratch.
Manager manages an existing organization.
Entrepreneur initiates the plan, materialize it and implements it.
A manager just manages..