The MSP430 is already an extremely low power microcontroller, but FRAM unleashes even more low power potential by removing the hurdles of write speed and power that Flash memory requires. Here one can see a direct comparison of the power and top write speeds of Flash and FRAM on two similar devices. These speeds were obtained by writing to a 512 byte section of memory on both devices with a commonly used bit of example code. One can see that FRAM writes over 120 times faster while using 1/3 of the power. This is very valuable for applications that require data to be copied to memory in case of a critical event, and also for updating firmware via a wireless interface while running. Notice also that unlike a Flash write operation, there is no need for block erasing before writing, nor is the CPU held or interrupts disabled.