Often, there are marketing terms used to try to sell a console over another. In the past consoles infamously used the argument of bits. Nowadays I'd say the resolution and framerate are the big comparisons of consoles, even if that doesn't exactly compare to bits since it's more performance than actual specs. I think the future we could have arguments of how fast a drive is, as it's already happening, or maybe just the good ol' GHz arguments.
