There seems to be some confusion in this thread between ferroelectric vs ferromagnetic. These are two distinct physical phenomena. FRAM is based on the former

There seems to be some confusion in this thread between ferroelectric vs ferromagnetic. These are two distinct physical phenomena. FRAM is based on the former whereas magnetic core memory is based on the latter. With this in mind, I’m not sure it is really accurate to regard FRAM as a successor to magnetic core memory.