Question live stream and Activity stream?

I might have missed something or overlooked some of the features but can you tell me what the exact difference is between the "standard" vB4 Live Stream and this Mod?
Also is there a cutoff date for retrieving data?

Thx
Michael

There's no cut-off date, but it will only fetch the latest X entries.

I don't know if the default vB stream will, but this one updates in real-time