The new 13-inch MacBook wasn’t designed specifically for gaming but with the somewhat impressive NVIDIA 9400M at the graphics core, it should suffice for occasional gaming. The Obsessable chaps installed Warhammer Online through a 32GB Windows XP partition and came to the conclusion that the notebook does a fine job even with a modern, graphic intensive game. Still, with the screen real estate limited to 13.3-inches, you aren’t going to play through Dead Space; unless you hook up the new 23-inch Cinema Display…