[772] Approximately how many watts can this radiator dissipate?

The number of watts is not available for this radiator. The fan/radiator combination will allow you to calculate the watts, depending on the RPM of the fan but there are other variables as well that makes this calculation more challenging. The fan and radiator provided, with the flow of water with the pump provided are more than enough to cool a spindle within an environment that has an ambient temperature below 90 degrees. The radiator is aluminum. The fin density is 18 fins per inch. There are 8 tubes and the connecting process is brazing.