The Conitec had a demo that showed hundreds of animated models in an infinite loop.
As i remember it was cca. 6 years ago.
Here: MMO test you can download a special version of A7 what aimed exactly the same, showing 500 animated models at 60 fps.
Maybe A8 can give more performance nowadays.
In the zip there are two test executables.
1. for testing crowd.
2. for testing terrain.
Good luck!