to modify the clock speed as needed to reduce power consumption and heat.
Throttling is process to keep your CPU healthy and increase life of your computer(with respect to running process's,temperature & speed)it is used to decrease the speed of the system temporarily when the system is idle for long duration and also helps in Laptops to increase life span of battery. Some time it also helpful in "Hardware Exceptions" we can decrease the performance of CPU by using throttling process.
the ability to modify CPU clock speed as needed
CPU technology is used in portable computers to reduce platform power and cap thermal dissipation of the computer.
to conserve the battery life by reducing the bus speed between the CPU and RAM
CPU throttling allows the system to use less power when it is not under a heavy load. This makes it both run cooler and more quietly (since it won't need to spin the fan as much), and conserves battery life.
it is utilizing CPU throttling technology
This depends on the laptops CPU.
Cooler
There are many laptops that are using the i5 CPU. One can purchase them from various retailers and manufacturers like Amazon, eBay, Medion or Lenovo.
unlikely most laptops CPU are soldered to the board either get a new one or send it back for an upgrade
No , you cannot change the CPU on any laptops
central processing unit (CPU) and graphics processing unit (GPU)