Well I had a geforce 3 ti-200 128mb with 1.8ghz.  Finished Far cry, hl2 and d3 with it, 1024 normal details.  I played css, mohaa, cod and brood war  

  a long time with it.  So it should obviously run well.  Unless you want some antialiasing on new games.  Which my new rig owns completly 

.