The advent of 64-bit processors on mobile was seen to herald support for more RAM inside smartphones and tablets. But to this day, you can probably count on the fingers of one hand the devices that come with even 4 GB of memory. The ASUS ZenFone 2 is one of those, bearing 4 GB of RAM inside. But what does that exactly mean in practice? YouTube user L BS provides a video demonstrating just that, swiftly and smoothly multi-tasking between one of the most resource intensive type of mobile apps: games.