Quadrant M4 system requirements state that you will need at least 4 GB of RAM. Additionally, the game developers recommend somewhere around 8 GB of RAM in your system. An Intel Core 2 Quad Q9000 CPU is required at a minimum to run Quadrant M4. Whereas, an Intel Core 2 Duo E8400 is recommended in order to run it. The cheapest graphics card you can play it on is an NVIDIA GeForce 8500 GT. But, according to the developers the recommended graphics card is an AMD Radeon HD 5450. You will need at least 2 GB of free disk space to install Quadrant M4.
Quadrant M4 will run on PC system with Windows 7 or more recent. and upwards.