It should be, I think, though it's a complicated question whose answer varies on so much, cpu architecture and how it is used. There is a great discussion on it

It should be, I think, though it's a complicated question whose answer varies on so much, cpu architecture and how it is used. There is a great discussion on it here, too. https://stackoverflow.com/questions/43343231/enhanced-rep-movsb-for-memcpy https://stackoverflow.com/questions/43343231/enhanced-rep-mo...