Assembly: Microsoft.Xna.Framework.Game (in microsoft.xna.framework.game.dll)
Update and Draw are called at different rates depending on whether IsFixedTimeStep is true or false. If IsFixedTimeStep is false, Update and Draw will be called sequentially as often as possible. If IsFixedTimeStep is true, Update will be called at the interval specified in TargetElapsedTime, while Draw will continue to be called as often as possible. For more information on fixed-step and variable-step game loops, see Application Model Overview.