GPU Benchmarks
Intel Core i7-4790K testing with a ASUS Z97-A-USB31 and XFX Radeon RX 580 (AMD POLARIS10 / DRM 3.18.0 / 4.13.9-300.fc27.x86_64 LLVM 4.0.1) 8192MB on Fedora 27 via the Phoronix Test Suite.


GTX 960: 

	Processor: Intel Core i7-4790K @ 4.40GHz (8 Cores), Motherboard: ASUS Z97-A-USB31, Chipset: Intel 4th Gen Core DRAM, Memory: 24576MB, Disk: 120GB Samsung SSD 750 + 500GB Western Digital WD5000AAKS-0 + 1000GB Western Digital WD1003FZEX-0, Graphics: eVGA NVIDIA GeForce GTX 960 4096MB (1278/3505MHz), Audio: Realtek ALC892, Monitor: MX279, Network: Intel Connection

	OS: Fedora 27, Kernel: 4.13.9-300.fc27.x86_64 (x86_64), Desktop: GNOME Shell 3.26.1, Display Driver: NVIDIA 384.90, OpenGL: 4.5.0, Vulkan: 1.0.61, Compiler: Clang 4.0.1, File-System: ext4, Screen Resolution: 1920x1080

RX 580: 

	Processor: Intel Core i7-4790K @ 4.40GHz (8 Cores), Motherboard: ASUS Z97-A-USB31, Chipset: Intel 4th Gen Core DRAM, Memory: 24576MB, Disk: 120GB Samsung SSD 750 + 500GB Western Digital WD5000AAKS-0 + 1000GB Western Digital WD1003FZEX-0, Graphics: XFX Radeon RX 580 (AMD POLARIS10 / DRM 3.18.0 / 4.13.9-300.fc27.x86_64 LLVM 4.0.1) 8192MB, Audio: Intel 9 Family HD Audio, Monitor: MX279, Network: Intel Connection

	OS: Fedora 27, Kernel: 4.13.9-300.fc27.x86_64 (x86_64), Desktop: GNOME Shell 3.26.1, Display Driver: modesetting 1.19.3, OpenGL: 4.5 Mesa 17.2.3 (LLVM 4.0.1), Vulkan: 1.0.61, Compiler: Clang 4.0.1, File-System: ext4, Screen Resolution: 1920x1080


Counter-Strike: Global Offensive
Resolution: 1920 x 1080
Frames Per Second > Higher Is Better
GTX 960 . 16.65 |==============================================================


Dota 2
Resolution: 1920 x 1080 - Renderer: OpenGL
Frames Per Second > Higher Is Better
GTX 960 . 96.47 |==============================================================
RX 580 .. 95.77 |==============================================================


OpenArena 0.8.8
Resolution: 1920 x 1080
Frames Per Second > Higher Is Better
GTX 960 . 424.10 |=============================================================
RX 580 .. 391.37 |========================================================


OpenArena 0.8.8
Resolution: 1920 x 1080 - Total Frame Time
Milliseconds < Lower Is Better
GTX 960 . MIN: 1.0  AVG: 2.4   MAX: 16.0 
RX 580 .. MIN: 1.0  AVG: 2.6   MAX: 21.0 


Unigine Heaven 4.0
Resolution: 1920 x 1080 - Mode: Fullscreen
Frames Per Second > Higher Is Better
GTX 960 . 52.61 |============================================
RX 580 .. 74.79 |==============================================================


Unigine Valley 1.0
Resolution: 1920 x 1080 - Mode: Fullscreen
Frames Per Second > Higher Is Better
GTX 960 . 59.85 |===============================================
RX 580 .. 78.87 |==============================================================


Xonotic 0.8.2
Resolution: 1920 x 1080 - Effects Quality: Ultimate
Frames Per Second > Higher Is Better
GTX 960 . 214.83 |=======================================================
RX 580 .. 237.49 |=============================================================


GLmark2 276
Resolution: 1920 x 1080
Score > Higher Is Better
GTX 960 . 3827 |===================================================
RX 580 .. 4714 |===============================================================


GpuTest 0.7.0
Test: GiMark - Resolution: 1920 x 1080 - Mode: Fullscreen
Points > Higher Is Better
GTX 960 . 3820 |===============================================================


GpuTest 0.7.0
Test: Plot3D - Resolution: 1920 x 1080 - Mode: Fullscreen
Points > Higher Is Better
GTX 960 . 71238 |=============================================
RX 580 .. 98843 |==============================================================


GpuTest 0.7.0
Test: Furmark - Resolution: 1920 x 1080 - Mode: Fullscreen
Points > Higher Is Better
GTX 960 . 2776 |=========================
RX 580 .. 7133 |===============================================================


GpuTest 0.7.0
Test: TessMark - Resolution: 1920 x 1080 - Mode: Fullscreen
Points > Higher Is Better
GTX 960 . 11179 |==============================================================


GpuTest 0.7.0
Test: Triangle - Resolution: 1920 x 1080 - Mode: Fullscreen
Points > Higher Is Better
GTX 960 . 230766 |=====================
RX 580 .. 684005 |=============================================================


GpuTest 0.7.0
Test: Pixmark Piano - Resolution: 1920 x 1080 - Mode: Fullscreen
Points > Higher Is Better
GTX 960 . 964  |=======================================
RX 580 .. 1546 |===============================================================


GpuTest 0.7.0
Test: Pixmark Volplosion - Resolution: 1920 x 1080 - Mode: Fullscreen
Points > Higher Is Better
GTX 960 . 2959 |=================================================
RX 580 .. 3787 |===============================================================