testufo.com has a wonderful set of motion tests you can run directly in your browser, to help you get a feel for what the user experience might be for different rendering conditions.
You can get a feel for framerates, jitter, judder, an all sorts of effects. The explanations are short and clear, with interesting bits of background.
Definitely a good site to spend ten minutes on, on refer others to when trying to explain some visual effect.
Happy testing!