no they should be saved in teh same place, however if you have a 3 file rolling auto save then if you're game was saved as game 1 for example the autosave would save as
game 1
game 1 (1)
game 1 (2)
always overiding game 1 and renameing what was game 1 to game 1 (1) and waht was game 1 (1) to game 1 (2) and deleting what was game 1 (2)