What does it mean if Arma 2 says it does not support a Shader model 3?

Answer by  gaf (42)

Arma 2 supports shader model 3 and above. Please check your graphics card specifications to make sure it meets the minimum requirements for Arma 2. You may also contact the maker and request support. Minimum System Requirements: CPU: Dual Core (Intel Pentium 4 3.0 GHz, Intel Core 2.0 GHz) Memory: 1GB + HDD Space: 10GB GPU:Nvidia Geforce 7800

Answer by  Tiberiu (65)

It means that if you computer is old, you can still play the game, even if it was release in 2009.Most of the games that are new require at least those kind of video cards with shader model 3 support.But having shader model 3 , will improve your experience in game.Have fun playing Arma 2.