Ubuntu 16.04: default kernel VS amdgpu-pro dkms
Intel Core i7-4770 testing with a Gigabyte B85M-D3H and MSI AMD Radeon R9 285/380 4096MB on Ubuntu 16.04 via the Phoronix Test Suite.


default 16.04 kernel: 

	Processor: Intel Core i7-4770 @ 3.90GHz (8 Cores), Motherboard: Gigabyte B85M-D3H, Chipset: Intel 4th Gen Core DRAM, Memory: 16384MB, Disk: 120GB KINGSTON SV300S3 + 2 x 2000GB Samsung SSD 850 + 4001GB Western Digital WD40EZRX-00S, Graphics: MSI AMD Radeon R9 285/380 4096MB, Audio: Realtek ALC892, Monitor: LG IPS FULLHD, Network: Realtek RTL8111/8168/8411

	OS: Ubuntu 16.04, Kernel: 4.4.0-59-generic (x86_64), Desktop: Unity 7.4.0, Display Server: X Server 1.18.4, Display Driver: modesetting 1.18.4, OpenGL: 4.3 Mesa 13.0.3- padoka PPA Gallium 0.4, Compiler: GCC 5.4.0 20160609, File-System: ext4, Screen Resolution: 1920x1080


Unigine Heaven 4.0
Resolution: 1920 x 1080 - Mode: Fullscreen
Frames Per Second > Higher Is Better
default 16.04 kernel . 47.97 |=================================================