Actually, the max condition yet not shared due to minimum, and recommended enough according to the game. You can also check the price of the game Check Price
Rugby 08 System Requirements Minimum
According to the minimum you must have whatever described below table. Do consideration.
Windows XP (32-bit version) & Vista
1.3 GHz (Vista requires 2.0 GHz)
256 MB (512 MB is required for use with Windows Vista)
Supported 64 MB Video Cards with T&L (NVIDIA GeForce3+ [MX series not supported] / ATI Radeon 8500+ [Radeon 9100 IGP not supported] / Intel 915+). Vista requires DirectX 9 capable video cards. Laptop models of these chipsets may work, but are not officially supported as they have not been tested.