It depends. There are a variety of differences. In terms of volume its far less then with a PWR as there you have lots of other stuff in there as well. For the

It depends. There are a variety of differences. In terms of volume its far less then with a PWR as there you have lots of other stuff in there as well. For the same amount of power, the waste from a MSR will much less and would have a better waste profile. However beyond that, it all depends. There are many different designs, different inputs, different burn rates and so on and so on.