OKAY! THANX TO EVERYONE, I KNOW THE DIFFERENCE. now I need a video card. That was the "error." damn it.

Well, thanx to all your insites, I went to emachines support.com to check out what I have on my pc (what came with it). I've never changed anything on it. Turns out that the details I have on my pc was not parallel to what they have on their website claiming that it was a "misprint." Anyways, I found out my problem overall. I need a video card. The game I want to play requires at least NVIDIA 6600 or ATI X700 to play the game. I was browsing for video cards and came across this one called ATI RADEON HD 2400 PRO AGP GRAPHICS Card. I think it's what I need. Of course I'm not an expert so I will need your expert opinion on this before I make my purchase. The customer reviews and ratings high on this card. AND, if any gamers out there recommends a better one, let me know please. I've got more than enough ram and free hard disk space, but I will take all of your advice in getting a separate ram for games only. Aite, I'm just an email away again! Thanx again to everyone!!!