get_the_title($postID) OR get_the_title()?

I would like to know which could be more performant between these two approaches of getting data of a post

• To use a loop after a WP_Query($aConditions) and use functions like get_the_title() … and all the similar functions without passing any parameters

• To call get_the_title($postID) with the parameter outside the loop

They’re both doing the same thing. If you don’t pass a post ID, get_the_title() will just use the current post and go about it’s business. The performance difference between passing a postID and not passing a postID is, if anything at all, is extremely minor.

get_the_title() Codex

get_the_title() Core Function