This seems like what your looking for its for Battlefield 2
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DEDICATED SERVER
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We highly recommend Battlefield 2 servers are run on dedicated server platforms. Currently, the best performance is on a machine with the following specifications:
LINUX
- Minimum Specification, based on playing a 16 player game:
CPU: 1 Ghz
RAM: 256 Mb
- Recommended Specification, based on playing a 64 player game:
CPU: 3 Ghz. For AMD Athlon 64 CPU: 3500+ (2.2 Ghz)
RAM: 1 Gb
WINDOWS
- Minimum Specification, based on playing a 16 player game:
CPU: 1 Ghz
RAM: 384 Mb
- Recommended Specification, based on playing a 64 player game:
CPU: 3 Ghz. For AMD Athlon 64 CPU: 3500+ (2.2 Ghz)
RAM: 1 Gb
BANDWIDTH
- Minimum 2.5 Mbit
- Recommended 5Mbit
As always if you can increase any of the above hardware you will improve your overall gameplay experience.
FIREWALL
The use of a software firewall on the server is not recommended, as it can adversely affect server performance and the overall gameplay experience.
heres a link to where I got it
http://planetbattlefield.gamespy.com/View.php?view=GameInfo.Detail&id=79&game=3