Similar specs to mine, and it runs fine I play on medium to high settings with an average fps of 40-50. I've got 8gb memory, but I think 6gb should be more than enough. The graphics card is a workhorse and really gets the job done.
edit: Just make sure it's got enough ventilation as the game can make the unit run pretty hot. I find my notebook pumps out incredibly hot air, so I either alt-tab to let it cool down a bit, or get some air flowing in the room by opening a window or turning on a fan.