For flash devices, power consumption / thermal dissipation is usually a small constant for the control logic, plus a very small amount per read, plus a small am

For flash devices, power consumption / thermal dissipation is usually a small constant for the control logic, plus a very small amount per read, plus a small amount per (page) write. If you are limited to the write rate allowed by the SSD interface, then that will serve to limit the heat dissipation as well.