Change some snippet depending on ID

Hi There

really having a hard time to figure this out.
I have a loop showing a certain category of post. Now I need a different pice of code for e certain Post and I can’t seem to get it to work

here Is my code example

<?php $new_query = new WP_Query(); ?>
<?php $new_query->query('cat=23&orderby=title&order=asc'); ?>
<?php while ($new_query->have_posts()) : $new_query->the_post(); ?>
<h3><?php the_title(); ?></h3>
<?php the_content(); ?>
// How to display this code snippet only for post ID 5
<p>I am Post ID 5</p>
// And this snippet for the others
<p>I am not Post ID 5</p>
<?php endwhile; ?>

Thanks for any input