1. Air Cooling Heatsink
This is the most common type of CPU cooler, consisting of a cooling fan and a heatsink. The principle is to transfer the heat generated by the CPU to the heatsink, which is then dissipated by the fan.
It is important to note that different CPU types and specifications require different heatsinks. For example, AMD CPUs use different heatsinks compared to Intel CPUs. Additionally, an Intel 478-pin CPU requires a different heatsink than an Intel 775-pin CPU.

2. Heat Pipe Heatsink
A heat pipe heatsink is a highly efficient thermal conductor that transfers heat through the evaporation and condensation of liquid in a fully sealed vacuum tube. Most of these coolers are "air-cooled heat pipe" systems, combining the benefits of both air cooling and heat pipe technology, resulting in excellent heat dissipation performance.

3. Water Cooling Heatsink
A water cooling heatsink utilizes liquid circulated by a pump to remove heat from the heatsink. Compared to air cooling, water cooling offers several advantages, including quieter operation, stable cooling performance, and less dependence on environmental conditions.