The NVIDIA/AMD Cards On Linux With The Best Value For 2015 Holiday Shopping
Xonotic can be easily run at 1080p on any modern graphics card. Worth noting from these results though is that the proprietary AMD performance continues to tap out much lower than any of the NVIDIA graphics cards except for the low-end GT 740 SC. The cards with the best performance-per-dollar don't end up being too surprising.
The OpenArena results aren't exciting considering barely anyone plays the game anymore, but the results are there since there's still a minority requesting such benchmark be done.
OpenArena also exposes the frame timing information in a nice manner that can then be consumed by the Phoronix Test Suite.