Train Neural Networks on STM32 and Arduino

Have you ever wondered how fast it's gonna be to train ANN on STM32 and Arduino, or is it even possible? Here's the benchmark for MCU.

wuhanstudio

Quantity		Component name
1	×	Atmega 2560 Arduino running at 16MHz
1	×	STM32F103C8T6 / STM32F103RCT6 STM32F10x Series running at 72MHz
1	×	STM32L475 STM32L475 running at 80MHz
1	×	STM32F401 STM32F401 running at 84MHz
1	×	STM32F429 STM32F429 running at 180MHz