Differences between Delegates and Interfaces

Delegate Interface
We can define multiple methods by using delegate. Interface defines only a single method.
No need to implement multiple times. Need to implement the interface multiple times.
Fastest to call at runtime when we know all the parameter types. Well designed interfaces are allowed for generic uses which are very faster than delegate’s .
Recommended for multi use cases as it is more flexible than interface. Very useful and faster for single use cases.
Allows the use of anonymous delegates Anonymous compile-time support is not possible in interfaces.
Multicast is supported. Interface doesn’t support multicast.
Faster to execute. Slower than delegates to execute.
Slower to get. Faster to get as they don’t allocate the new objects.

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