Storing variables as string or as variables in array performance

Hello Dear Excel Help Forum

I would like to know what is better approach to store set of variables.
a) Is it better to store name of variables or object names in string array or b) rather store the objects themselves in variant array?

Is there some overhead when converting name string to object reference or both approaches has same performance? (on nanosecond scale)

I suspect the OP comes from C based languages. The OP is thinking in terms of Boxing and Unboxing objects.
VBA does not have complex data structures- unlike C++ or C#,VBA has a simple Arrays and Dictionary structures.

To clarify what I mean:

a)

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b)

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I'm interested what is faster and what takes more memory when populating array, traversing the populated array and operating on each element of the array.