I have an alienware m17x with the following specs and since day 1 i have been getting 7-8fps gameplay where other friends of mine with way less capable computers have been playing it better. I would like to know of a fix or how even to solve this.

Intel core i7 x920 running at 2.00GHZ

8GB ram 833mhz if i remember correctly

two HD 4870 graphics card 1GB running with crossfireX

Try disabling crossfire and try playing. This should resolve the matter temporarily. If this solves the problem ensure you have the most up to date drivers and the CAPs before turning crossfire back on for this title. Crossfire scaling for both nVidia and ATI have been pretty crappy with newer titles. The CAPs are profiles that use to have discreet settings by application but the newest drivers allow one to fidget with these settings, mainly the crossfire mode.