To get the best out of your lanning experience, it is always more fun to play on a system with little-to-no lag. Therefore, we recommend that your system meets certain requirements, or your lanning experience will not be as good if you are unable to play certain games because of too much system lag.
Graphics: 256mb of VRAM, pixel shader 2.0. example: ATI X1650 Pro or Nvidia GeForce 6800
CPU: 3.2GHz Intel Pentium 4 or equivalent (some games MAY run on a Intel Celeron Processor, but not many).
System memory(RAM): 1gb for XP - 2gb for Vista
Keep in mind that running at these settings, you will not be allowed to play certain games at the lan. Most noticeably Supreme Commander, which lags (or slows down the gameplay) on allot of systems.