What is the memory usage of different C# collections?

What is the memory usage of different C# collections?

The memory usage of C# collections varies. For example, a List<T> has an overhead of 4 bytes plus the size of its elements.

How does a Dictionary<TKey, TValue> compare in terms of memory usage?

A Dictionary<TKey, TValue> has a higher overhead due to its internal structure, typically around 24 bytes plus the size of its elements.

Are there any collections that are more memory efficient?

Yes, collections like Array or Span<T> can be more memory efficient as they have less overhead compared to dynamic collections.

What factors affect the memory usage of these collections?

Factors include the number of elements, the type of elements, and the collection's internal structure.