The speed of your cpu and ram (as well as the motherboard) does make a difference but atleast now your pc has enough ram to run without running your hard drive. If you change your graphic setting between high to low and don't see much improvement I would wait on getting a graphic card just for this game. I don't believe graphics is the problem but how poorly civ4 handles it's memory.romelus said:well i went and got myself 1 gb more ram, so now i have 1.5 gb. gameplay has improved a little bit, but not as much as i thought it would.
just tried starting a game on a large map, and game started to lag pretty soon. i had explored my small home continent, found two other civs, and built a second city, then it started to get choppy again.
gameplay was tolerable on the small map game that i was finishing. lost the game by space race, but game was playable till the end.
i'm starting to think it's my graphics card, but looking at the screen i just can't justify "how". the graphics isn't even close to being as good as other 3d games i've played, which run perfectly smoothly on my rig.
and if it's cpu, why does it lag while it's my turn, and presumably the other AIs aren't "thinking". between turn times is also very fast
i'm confused now
Also your processor is handling a lot more than just AI to slow it down. The slow downs is related to have much the map is revealed and how many unit/cities in on the map.