On Raspberry "GPU" (VideoCore processor) is the main processor. ARM CPU is secondary in some sense. Here's a good overview: https://thekandyancode.wordpress.c

On Raspberry "GPU" (VideoCore processor) is the main processor. ARM CPU is secondary in some sense. Here's a good overview: https://thekandyancode.wordpress.com/2013/09/21/how-the-raspberry-pi-boots-up/ https://thekandyancode.wordpress.com/2013/09/21/how-the-rasp... https://raspberrypi.stackexchange.com/a/10595 https://raspberrypi.stackexchange.com/a/10595