We shall see what productivity and efficiency are through 5 concepts.
Efficiency: Efficiency is how well, you use the resources and data given to you.
Productivity: Productivity is about the quality and quantity of outputs you produce with the help of these resources.
Better utilization of resources shows efficiency.
Better outcomes show Productivity.
Efficiency: Efficiency is about finishing the tasks before you effectively. It could be with minimum effort or with limited resources or with little knowledge.
Productivity: Productivity is to identify the tasks, prioritizing it, and completing the important tasks first. And, later, you can carry on with other less-important works.
Efficiency is about completing the tasks.
Productivity is about identifying important tasks and finishing it well.
Efficiency does not mean productivity.
For example: You may be efficient in completing all the tasks. But those take should be less-relevant or no-importance for the current situation.
You become productive when you identify what is important and doing it instead of doing everything.
Efficiency: Efficiency is about how well you are managing everything around you. It includes time, resources, schedules, planning, deadline, etc.
Productivity: Productivity is about how much output and value you are bringing through management.
Here, people could be efficient in managing things. But, they could be less-productive with overall results or outputs.
A person might be productive but cannot efficiently manage things around. They would look for help or any form of assistance.
Efficiency: How you deal with individual tasks also shows efficiency.
Productivity: You can generalize productivity in terms of achieving the results and getting things done.
Efficiency: It depends upon individual efforts. Despite difficulties, people Stay efficient.
Productivity: Different factors affect productivity. Challenges and difficulties can alter overall-productivity levels.
The takeaway here is in, Getting Efficient at Productive/Priority Tasks is important.