Compared are the shortened version of "Son of Stimpy" on the US-DVD by Paramount and the uncut version on the German DVD by Turbine Classics.

The differences:

2 cuts = 53 seconds

The Ren & Stimpy Show is one of the most over the edge cartoon shows ever. So it's no surprise that Nickelodeon US - similar to Disney - reacted to the feedback of the audience and made a few cuts. On top of that, later broadcasts on Spike TV contained further alterations. More cuts were made and, if required, some scenes had a higher frames per second rate in order to reach the regular length for syndication. These versions are the available ones on the so-called "uncut" US-DVDs by Paramount.

Surprisingly enough, the German broadcasts back in the 90s were amlmost uncut, only a few scenes with too explicite footage were removed.

For the uncut box the comparisons have been made with, Turbine Germany used the cut (but restored) US masters and the original German versions in order to put the longest versions possible on the German DVD set. Missing scenes in the US Versions have been filled with the German version (including the German dub), missing scenes in the German versions have been filled with the US Version (and they got subtitled in German, if necessary). The result is the longest version available of every single episode.

8 min
You see a ceiling lamp. The camera pans downwards to Stimpy who lies in bed and stares at the roof. Ren lies next to him and sleeps.
35 sec

16 min
Ren says Stimpy that he has a present for the latter. He gets the present out and holds it in the air. Then the Cartoon cuts to Stimpy. It's not Stimpy himself but rather a picture of him which stands on the table. Ren says that he hopes that he likes the present whereever he might be and puts the present next to the framed picture.
18 sec