Quote - It does say under the system requirements that a "recent NVIDIA GeForce and ATI Radeon required for advanced real-time preview features". So, yes, you will need a modern graphics card for these features (raytraced preview and real-time physics I assume). I have a GTX 670, so I should be fine.

TD

Wouldn't the real-time preview features refer to the improved Open GL and new toon and comic display modes?  I'm still under the impression that the raytrace preview and physics are both probably CPU based. 

Anything DX11 capable is still considered modern, right?