After reading the millionth posts about "my screen stutters" VS. "my screen is smooth as silk", im curious as to the technical aspects of what exactly is driving the screen. After a few weeks of research i have not been able to come up with a firm answer. Unlike most systems, it doesnt seem to me that the graphics card alone is responsible for pushing the pixels, and im wondering if this is the reason for such varying reports of stuttering. I know that apple is doing a LOT of under the hood magic tricks on this display and im wondering if there is a lot of shared tasks between resources and is dependant on the amount of available RAM, SSD, and processor speed. Again, if this is the case, is it possible all the different reports are due to the many different configurations of these machines? Theres so much bickering and claims of subjectivity on the "stuttering", but could it be that everyone is correct and each machine runs a little differently? So exactly what part of this machine is responsible for driving this display?