Don't listen to these naysayers. If you're really running an i7, coupled with a 6630, you'll be able to run it just fine at very high resolution and graphical detail.
The PS3 is 5 years old, and the technology put into it is even older still. Battlefield 3 is coded to take advantage of PC hardware, so if you had a PC running the same vintage of hardware that the PS3 uses, the quality of your game would still be better than a PS3.
its a note book gfx card and no, it wont match the quality of the ps3... it will barley run the game on minimum as the 6630m ist as strong as an 88gt and thats minimum recommendation... your gonna be lucky to hit 4 fps at absolute minimum settings and rez gounf by the bench results i have linked.