If you have $200 USD get a GTX 460 1gb no questions asked. I bought one for my recent build and it handles the game on all ultra settings, with avg fps being 60+. And I play with EIGHT players at once. It's an amazing card.
all i know is what i have written in question. how do i find pc configuration and all i know about graphics card is its a mobile intel 4 series express chipset. GMA 4500MHD total graphics memory 1759MB dedicated video memory 128MB system video memory 0MB shared system memory 1631 MB. idk if tht helps