Results: 3D Mark 2011
The latest 3D Mark features some heavy DX11 content with plenty of tessellation to make most video cards cry. The Performance preset was used.
Seems like the $100 difference between the GTX 670 and the HD 7000 cards is certainly worth it. The results are pretty much in favor of the NVIDIA card. Remember, this is a synthetic benchmark, and optimizing for such a thing is of great importance to these companies.