The cheapest graphics card you can play it on is an Intel HD 3000. To play Warborn you will need a minimum CPU equivalent to an Intel Core i5-650. You will need at least 2 GB of free disk space to install Warborn. Warborn system requirements state that you will need at least 4 GB of RAM.
Warborn will run on PC system with Windows 7 SP1 and upwards. Additionally it has a Mac version.