What is the main benefit of an ARM processor?

The main benefit of an ARM processor is its greater energy efficiency. ARM processors are specifically designed with a focus on low power consumption, making them ideal for mobile devices and other battery-operated equipment. This low energy usage allows for longer battery life, which is critical in the design of smartphones, tablets, and embedded systems.

While higher processing power, compatibility with legacy software, and expanded memory capacity are important features in various contexts, they do not reflect the primary advantage of ARM architecture. ARM chips typically sacrifice some raw processing power compared to higher-end processors, but this is compensated by their efficiency and ability to operate effectively in energy-constrained environments. This focus on energy efficiency is what has made ARM a dominant architecture for mobile and embedded computing.