Short bio: Computer Scientist, FOSS supporter (read more)
Tux Machines (TM)-specific
After some dabbling this weekend with Ubuntu 12.10 on both the Nouveau and NVIDIA graphics drivers, there's both good and bad news to share.
Some light weekend benchmarks were done from the Lenovo ThinkPad W510 notebook with an Intel Core i7 720QM processor and NVIDIA Quadro FX880M graphics on Nouveau and the NVIDIA binary blob, following the Unity 6.8 desktop benchmarks. The good news is that the reverse-engineered open-source Nouveau driver is performing more competitive to the NVIDIA binary blob for this discrete mobile GPU when using the Nouveau Gallium3D stack found in Ubuntu 12.10. The Quantal Nouveau stack consists of the Linux 3.5 kernel, Mesa 9.0, and xf86-video-nouveau 1.0.2.