My MacBook Pro gets extremely hot when playing video games. It got so hot I can't even put my hands on the hot area of the laptop for more than 30 seconds. I would think it gets even hotter on a macbook air because it is so compact with little room for air flow. My thinkpad has integrated video so there was no gaming on it. But when the thinkpad gets hot, the hot air is blowing out of the laptop like a heater. The apple laptop does not has this kind of air ventilation because it wants to look cool.