I have few older TV's (Plasma and LCD) that I would like to use only for watching movies from USB's? Is an android tv box with 1 GB of RAM DDR3 enough to watch 720p and above resolution movies? I will only use the android box for that and nothing else. I'm asking because the 1GB android tv boxes are considerably cheaper where I live,so if 1GB of RAM is enough for that I'll buy those.