Similar specs to my machine. I'm running an old Quad q6700 2.67 with a Radeon 6670, a machine most would consider to be mediocre at best. I consistently get 60 fps on High settings with shadows disabled. Although I do consistently get that stutter while moving around every time the game is pulling data off the HD. Not sure if it's just the engine or my hard drive. Just a standard 7200 HDD, but it gets pretty annoying. I've yet to try the PTS.