Results: 3D Mark Firestrike
This particular number has only been out a few weeks and can really push the very latest DX11 based cards to their limit. I used the standard Firestrike test here (Extreme setting disabled).
Firestrike is a bit more interesting as it leans a bit heavier on GPGPU. The 7950 is now closer to the 670, the two $400 cards are nearly identical, and the GTX 780 again is the fastest card of the bunch.