Official John Deere: Drive Green system requirements
These are the PC specs advised by developers to run at minimal and recommended settings. Those requirements are usually very approximate, but still can be used to determine the indicative hardware tier you need to play the game.
Minimum system requirements
Recommended system requirements
Graphics card: 64 MB Video Card – NVIDIA, GeForce or ATI Radeon
Graphics card: 128 MB Video Card – NVIDIA, GeForce or ATI Radeon