Heap vs. Stack - Guia rápido e prático de estudos (Em Inglês)

[William Duarte]

Pessoal, boa noite. 

Vejam este link sobre memória heap vs. stack, no Delphi.About

http://delphi.about.com/od/windowsshellapi/a/heap-stack-explained-for-delphi-developers.htm

Em síntese, Stack :

Local routine (method, procedure, function) variables.

Routine parameters and return types.

Windows API function calls.

Records (this is why you do not have to explicitly create an instance of a record type).

Heap :

Creating an instance of a class.

Creating and resizing dynamic arrays.

Explicitly allocating memory using GetMem, FreeMem, New and Dispose()

Using ansi/wide/unicode strings, variants, interfaces (managed automatically by Delphi).

Já serve como um norte para estudos!

Abraços,

William Duarte