ARM vs x86: khác biệt ra sao? Mạnh hơn? Pin tốt hơn?

The video begins by exploring the differences between ARM and x86 architectures, delving into both theoretical and practical issues surrounding them. ARM architectures, developed decades ago like their x86 counterparts, have traditionally been seen as more power-efficient. The video's aim is to clarify why ARM is considered more power-efficient and to explore the validity of this claim with respect to modern technology.

Historically, most personal computers have run on x86 chips from Intel or AMD, which are also found in desktops, servers, and more, showcasing their dominance. ARM chips were initially designed for embedded devices that required low power consumption and couldn't accommodate x86 chips due to their higher power needs. However, ARM chips have since evolved; they're now used in most smartphones and are beginning to be adopted in computers, prompted by Apple’s switch to ARM for their computers. This transition suggests a shift towards ARM in various devices beyond the traditionally dominating x86.

ARM architecture, developed by ARM Holdings, varies in licensing models, allowing companies like Qualcomm or Apple's custom chip designs. Instruction sets are collections of commands for CPUs, with x86 having a complex set (CISC) aiding programmers but requiring more power. In contrast, ARM employs a reduced instruction set (RISC), resulting in less power consumption, but increased complexity for software developers. Over time, ARM has grown to accommodate complex calculations, closing the performance gap between ARM and x86.