It depends on which effect one is counting. The warhead is intended to penetrate the armor and then detonate within the tank. Sympathetic detonation of the ammunition inside the hull generally creates an overpressure that throws the turret up and out and sets the hull on fire. What happens to the humans is better left unremarked. Tank remains are generally quite pitiable to contemplate. The tank as a whole is not typically moved any distance (although I can't guarantee that a blown turret wouldn't be accompanied by a moved hull). In the end, there is considerable uncertainty as to what will happen.