What is the difference between Task.Run and Task.Factory.StartNew?
PICTURE THIS: ASYNC / PROMISE
Simple meaning
Task.Run is the modern short form for offloading to the thread pool.
WHY — C# instead of guessing?
Why interviewers care about C#:
contrast on C#, not two memorised paragraphs.
the developer, then one case where picking wrong hurts.
Name the idea, why it exists, then one short example.
End with when you use it and one common pitfall.
STEPS — What happens step by step?
Before you speak the answer, walk the interviewer through these steps:
- 1Task.Run is the modern
short form for offloading to the thread pool.
- 2StartNew has more options
and surprising defaults with async delegates.
- 3I stick to Task.Run
unless I need those options.
- 4Give an example
One tiny concrete case you can say aloud.
- 5Common mistake
What juniors usually get wrong.
- 6Close
When you pick this over the alternative.
EXAMPLE — See it in action
Here's a short line you can speak, broken into clear beats:
Note: Adapt this scaffold to your own project — keep it under 60–90 seconds.
Key takeaway
Task.Run is the modern short form for offloading to the thread pool. StartNew has more options and surprising defaults with async delegates.