Fire Strike Extreme
The Extreme settings of the Fire Strike scene show the same standings, except for the downright slow Radeon HD 7770 and HD 7750.
The graphics subtests agree with the overall scores:
The physics subtest doesn’t have anything new to tell us.
The GeForce GTX 690 is ahead in the combined subtest but its advantage over the Radeon HD 7970 is hardly impressive.
The GeForce GTX 680 and GTX 670 are third and fifth, respectively, separated by the Radeon HD 7950. The next two pairs of AMD- and Nvidia-based cards are comparable to each other again whereas the Radeon HD 7850 and GeForce GTX 660 have absolutely identical scores.
Here is a table with the full test results: