Yes it does, but not to the extent that SpeedFan on your desktop CPU can do. For example:
You can use SpeedFan to measure idle temps, but the only way you are going to notice a difference is when it starts getting too hot and fan RPM starts falling off a cliff. With laptops though speedfan works at higher temps than normal where you could actually hear some fans running from inside a laptop casing if you did an ambient temperature test where the laptop was sitting on your lap. But with laptops the thermal diode is located right under the display bezel (where most of the heat radiates into) so I imagine for normal use in daily computing there wouldn't be much difference between how an average desktop or laptop deals with heating compared to what I describe in my answer for how they deal with being heated up.