[geek_rohit]

Answer to the first querry.
If you are a casual gamer, who just wants to play games and does not worry about the frame rates than the GMA 900 is a good solution. Ofcourse the graphics cards do help as they offer much better performance like T&L, Shaders, etc.

As for the second question. These are the ranks of the user and increase as the no of post increase. But that does not mean that you spam and increase your post count to increase your rank.