Nouveau Re-Clocked With DRM-Next Linux 4.12 + Mesa 17.2-dev vs. NVIDIA 381 Driver
While the performance goes up a lot when re-clocked to the highest performance state, the Nouveau driver on older Kepler and GM107 hardware still comes up well short of the NVIDIA proprietary driver.
The Dota 2 Nouveau results were particularly poor.
In some benchmarks, the GTX 780 Ti appears more competitive on Nouveau against the NVIDIA binary driver than the GTX 750 Ti.