That's actually what I'm running except I've got 12GB of RAM in my laptop so you would be more than good to go. My laptop is the ASUS G74SX-A1 17.3-Inch Gaming Laptop - Republic of Gamers and it maxes everything I throw at it without much of a problem at all. The only games that have brought it down are Metro 2033 with DX11, HD texture pack, and everything on Ultra. I was pulling around 15fps which was pretty awful but with some minor tweaking like bringing the MXAA down from 16x to 8x things ran smoothly again.
I'll be picking that up and thank you very much for that recommendation.