3 ms·If you use the latest OSX, slowdown is very noticeable because of animations and other effects.by solomatov 11y agoIf you use the latest OSX, slowdown is very noticeable because of animations and other effects.pavlov 11y agoThat's mainly a GPU problem though.solomatov 11y agoNow GPU is part of CPU, at least in Intel processors.JaRail 11y agoYup. You notice a huge difference in smoothness when switching a high-end MBP between integrated and dedicated graphics.