What other actions are batched vs. not batched

Hello,

Are the actions listed in "How does the "Commit pending changes" action work and when is it best used?" (http://connect.nintex.com/forums/post/11642.aspx) the only actions that are batched?

Do all other actions (other than those listed above) execute immediately when they are encountered in a workflow? 

Are there any other actions (besides the the delays, tasks, commit pending changes, and end) that cause a commit?

Thanks!