Kernel AMDGPU Graphics
AMD Ryzen Threadripper 2990WX 32-Core testing with a ASUS ROG ZENITH EXTREME (1601 BIOS) and MSI AMD Radeon RX 470/480/570/570X/580/580X 8GB on Ubuntu 18.10 via the Phoronix Test Suite.


Linux 4.14.4: 

	Processor: AMD Ryzen Threadripper 2990WX 32-Core @ 3.00GHz (32 Cores / 64 Threads), Motherboard: ASUS ROG ZENITH EXTREME (1601 BIOS), Chipset: AMD Family 17h, Memory: 32768MB, Disk: Samsung SSD 970 EVO 500GB, Graphics: MSI AMD Radeon RX 470/480/570/570X/580/580X 8GB (1366/2000MHz), Audio: Realtek ALC1220, Monitor: ASUS VP28U, Network: Intel I211 Gigabit Connection + Qualcomm Atheros QCA6174 802.11ac Wireless

	OS: Ubuntu 18.10, Kernel: 4.14.4-041404-generic (x86_64), Desktop: GNOME Shell 3.30.1, Display Server: X Server 1.20.1, Display Driver: modesetting 1.20.1, OpenGL: 4.5 Mesa 18.2.2 (LLVM 7.0.0), Compiler: GCC 8.2.0, File-System: ext4, Screen Resolution: 3840x2160

Linux 4.20: 

	Processor: AMD Ryzen Threadripper 2990WX 32-Core @ 3.00GHz (32 Cores / 64 Threads), Motherboard: ASUS ROG ZENITH EXTREME (1601 BIOS), Chipset: AMD Family 17h, Memory: 32768MB, Disk: Samsung SSD 970 EVO 500GB, Graphics: MSI AMD Radeon RX 470/480/570/570X/580/580X 8GB (1366/2000MHz), Audio: Realtek ALC1220, Monitor: ASUS VP28U, Network: Intel I211 Gigabit Connection + Qualcomm Atheros QCA6174 802.11ac Wireless

	OS: Ubuntu 18.10, Kernel: 4.20.0-999-generic (x86_64) 20181216, Desktop: GNOME Shell 3.30.1, Display Server: X Server 1.20.1, Display Driver: modesetting 1.20.1, OpenGL: 4.5 Mesa 18.2.2 (LLVM 7.0.0), Compiler: GCC 8.2.0, File-System: ext4, Screen Resolution: 3840x2160


OpenArena 0.8.8
Resolution: 2560 x 1440
Frames Per Second > Higher Is Better
Linux 4.14.4 . 254 |===========================================================
Linux 4.20 ... 253 |===========================================================


OpenArena 0.8.8
Resolution: 2560 x 1440 - Total Frame Time
Milliseconds < Lower Is Better
Linux 4.14.4 . MIN: 1.0  AVG: 4.0   MAX: 31.0 
Linux 4.20 ... MIN: 1.0  AVG: 3.9   MAX: 26.0 


Tesseract 2014-05-12
Resolution: 3840 x 2160
Frames Per Second > Higher Is Better
Linux 4.14.4 . 204 |===========================================================
Linux 4.20 ... 203 |===========================================================


Unigine Superposition 1.0
Resolution: 1920 x 1080 - Mode: Fullscreen - Quality: Low - Renderer: OpenGL
Frames Per Second > Higher Is Better
Linux 4.14.4 . 91.80 |=========================================================
Linux 4.20 ... 92.27 |=========================================================


Unigine Superposition 1.0
Resolution: 1920 x 1080 - Mode: Fullscreen - Quality: Ultra - Renderer: OpenGL
Frames Per Second > Higher Is Better
Linux 4.20 . 14.87 |===========================================================


Xonotic 0.8.2
Resolution: 3840 x 2160 - Effects Quality: Low
Frames Per Second > Higher Is Better
Linux 4.20 . 405 |=============================================================


Xonotic 0.8.2
Resolution: 3840 x 2160 - Effects Quality: High
Frames Per Second > Higher Is Better
Linux 4.20 . 289 |=============================================================