nouveau
Intel Core i5-4690K testing with a Gigabyte Z97X-Gaming 7 and eVGA NVIDIA GeForce GTX 760 4096MB on Ubuntu 15.10 via the Phoronix Test Suite.


eVGA NVIDIA GeForce GTX 760: 

	Processor: Intel Core i5-4690K @ 3.90GHz (4 Cores), Motherboard: Gigabyte Z97X-Gaming 7, Chipset: Intel 4th Gen Core DRAM, Memory: 8192MB, Disk: 2 x 250GB Samsung SSD 840 + 250GB Samsung SSD 850, Graphics: eVGA NVIDIA GeForce GTX 760 4096MB (1306/6008MHz), Audio: Realtek ALC1150, Monitor: VG248, Network: Qualcomm Atheros Killer E220x Gigabit

	OS: Ubuntu 15.10, Kernel: 4.4.0-1-generic (x86_64), Desktop: GNOME Shell 3.18.2, Display Server: X Server 1.17.2, Display Driver: nouveau 1.0.11, OpenGL: 4.1 Mesa 11.1.0-devel (git-2b2d0bb) Gallium 0.4, File-System: f2fs, Screen Resolution: 1920x1080

4.4 plus nouveau drm set: 

	Processor: Intel Core i5-4690K @ 3.90GHz (4 Cores), Motherboard: Gigabyte Z97X-Gaming 7, Chipset: Intel 4th Gen Core DRAM, Memory: 8192MB, Disk: 2 x 250GB Samsung SSD 840 + 250GB Samsung SSD 850, Graphics: eVGA NVIDIA GeForce GTX 760 4096MB (1084/6008MHz), Audio: Realtek ALC1150, Monitor: VG248, Network: Qualcomm Atheros Killer E220x Gigabit

	OS: Ubuntu 15.10, Kernel: 4.4.0-3-generic (x86_64), Desktop: GNOME Shell 3.18.2, Display Server: X Server 1.17.2, Display Driver: nouveau 1.0.11, OpenGL: 4.1 Mesa 11.1.0-devel (git-2b2d0bb) Gallium 0.4, File-System: f2fs, Screen Resolution: 1920x1080


Xonotic 0.8
Resolution: 1920 x 1080 - Effects Quality: Ultra
Frames Per Second > Higher Is Better
eVGA NVIDIA GeForce GTX 760 . 131.15 |==========================
4.4 plus nouveau drm set .... 210.67 |=========================================


Xonotic 0.8
Resolution: 1920 x 1080 - Effects Quality: Ultimate
Frames Per Second > Higher Is Better
4.4 plus nouveau drm set . 156.65 |============================================