Again, thanks to PCGamer, they've done a great write up AND video about the graphics settings for GW2
Enjoy here: http://www.pcgamer.com/previews/guild-wars-2-graphics-settings-walkthrough/
and for those too lazy to link click
Guild Wars 2 is pretty, everyone knows that. But it’s also designed to scale down smoothly so that the game can run on lower-end machines as well. In this video, Gavin and Josh walk you through every graphics option available in the beta, and show you step-by-step how they effect the visual fidelity of the game in a variety of settings.
