JazzB1987 on 26 November 2013
The one and only answer is FRAMERATE it can damage the gameplay. It is substantial it can destroy every game no matter the genre.
While screen tearing is just cosmetics and has actually no real negative impact on the games.
Obviously I am talking about frames falling below 30 etc not going from 80 fps to 60 in which case screen tearing is the bigger problem.
