How are mobile microprocessors so efficient?

Discussion in 'General Electronics Chat' started by Guest1999354, May 26, 2016.

  1. Guest1999354

    Thread Starter New Member

    Nov 20, 2015
    Here is my question:

    How is it that processors based on the ARM architecture, designed for mobile devices are so much more efficient than mainframe chips?

    Comparing two instruction set architectures; ARM and X86, how is it that ARM chips can run on so much less power? How is it possible for them to cram so much logic onto a single chip, and still retain the power efficiently?
    Like, an ARM system on chip is an entire computer. The CPU, GPU, DSP, RF baseband and Input/ Output all on a piece of silicon. Even though each of these cores are low power, low circuit content, it still has the same amount of transistors as a desktop processor I.E Intel X86?
    Where so an so million transistors in an Intel chip would be only the CPU and it's buses and memory, for an ARM chip this is the entire computer?
    Can you help me understand the differences?
  2. nsaspook

    AAC Fanatic!

    Aug 27, 2009