Upscaling to get anti-aliasing

[SharpeXB]

Is there a way to get a graphics card (Nvidia) to output the game at a higher res than your monitor in order to smooth the image?
I saw this idea on another thread and am wondering if it works.

[Jaws2002]

Try this:

http://www.youtube.com/watch?v=tLPBOvrA1xQ