Idk if this is a concern or how quad cores are suppose to work but when the game is under load my video memory is maxed out on a 1GB card (gtx 285) and my ram never exceeds 69% usage. Im currently doing testing with 12 civ 24? cs and huge map normal time and the turn is 200. my turns take about 2-5 secs and have been about the same since the 1st turn. When I make the turn the cpu usage never ever goes above 50% and only one core spikes to ~70% and the other remain largely unchanged and over around 20-40%. I dont have any problem with crashes yet and this is my 1st game with a huge map of civ 5. Also, about the video mem usage u run the game maxed out and 1920x1080 res with 0 AA. what do u guys think of this "lack of cpu usage" and obsessive vid mem usage?