i forget what setting i used,last time i played this game is in
2006 .
i think if u can run the game smoohtly in low setting ,lag in high
setting must caused by video card or lack of memery .
the cpu is mainly responsible for AI and physics-effects's
calculating.
3D effects 's calculating is mainly on video card.
memery maily supply space for game texture files.
high settings need more memery and faster 3d card.