on 27-01-2016 14:10
SoC is basically the entire brains of the device on one chip instead of several.
in PC terms, you get the motherboard which houses the CPU, a separate graphics card, memory (RAM) and everything else (HD, disc tray, etc) links on to it.
the SoC basically has the CPU, GPU and RAM on one chip - reducing size and power consumption and minimising delay for retrieving and processing information. hence the faster chips as the size reduces (up to a point anyway).