Samsung MagicNet Setup

Hello All,
I have a client that is installing 4 Samsung displays on their wall, side by side. left to right, 1 2 3 4. Samsung provides software called MagicNet that allows you to control a number of screens with one computer. Looking on the Samsung site there is a bit of info that states optimal screen resolution 1360x768 @60Hz.

We would like to have animation that moves across the four screens. From reading some previous post I think we will build our file to the completed size across 4 screens then go back and render out the portion that goes to each individual screen. In doing that, and looking at the Samsung specs, would that mean building a pieces that is 5440x768 @ 60Hz? that will then be broken down into the individual pieces of 1360x768? That will be a large file for me at 5440x768. Does it need to be that big?

Also where does the 60Hz come in?

Thank you for any insight.
-Brett