Here's some of the first OpenGL benchmarks of the ultra high-end $999 (USD) NVIDIA GeForce GTX TITAN running on Linux.
The mighty-impressive NVIDIA GeForce GTX TITAN was released in mid-February as a graphics card with 6GB of video RAM and boasts 4.5 TeraFLOPS of single-precision compute power and 1.3 TeraFLOPS of double-precision compute power. The NVIDIA 313.26 driver was released to support this ultra-powerful NVIDIA GeForce graphics card under Linux.
Fortunately, Phoronix Forums moderator "Deanjo" bought the $999 NVIDIA graphics card for himself and has been running some tests. You can find his NVIDIA GeForce GTX TITAN benchmark results with the NVIDIA binary blob doing OpenGL on openSUSE 12.3.
His main GTX TITAN results can be found on OpenBenchmarking.org within 1303113-FO-GEFORCETI80. Click that link for GTX TITAN Linux results from the KDE 4.10 desktop with the Unigine benchmarks, Xonotic, and others. Through the Phoronix Test Suite you can see how your system compares by simply running phoronix-test-suite benchmark 1303113-FO-GEFORCETI80.
Discussion and other information can be found within this forum thread where readers should be able to ask him any other Linux TITAN information or other test requests. Too bad though we aren't able to run any GTX TITAN results in-house for an extensive Linux product review.