Hans
Intel Core i5-4670K testing with a ASRock Z87 Extreme6/ac and AMD POLARIS10 4096MB on Gentoo 2.4.1 via the Phoronix Test Suite.
test1
Processor: Intel Core i5-4670K @ 3.80GHz (4 Cores), Motherboard: ASRock Z87 Extreme6/ac, Memory: 16384MB, Disk: 120GB INTEL SSDSC2BW12 + 1000GB Seagate ST1000DM003-1CH1, Graphics: AMD POLARIS10 4096MB, Monitor: 2460G5
OS: Gentoo 2.4.1, Kernel: 4.11.0-gentoo (x86_64), Desktop: Xfce 4.12, Display Server: X Server 1.19.3, Display Driver: amdgpu 1.3.0, OpenGL: 4.5 Mesa 17.1.3 Gallium 0.4 (LLVM 4.0.0), Vulkan: 1.0.3, Compiler: GCC 6.3.0 + Clang 4.0.0 + LLVM 4.0.0, File-System: ext4, Screen Resolution: 1920x1080
Processor Notes: Scaling Governor: intel_pstate powersave
Graphics Notes: GLAMOR
Unigine Tropics
test1
Processor: Intel Core i5-4670K @ 3.80GHz (4 Cores), Motherboard: ASRock Z87 Extreme6/ac, Memory: 16384MB, Disk: 120GB INTEL SSDSC2BW12 + 1000GB Seagate ST1000DM003-1CH1, Graphics: AMD POLARIS10 4096MB, Monitor: 2460G5
OS: Gentoo 2.4.1, Kernel: 4.11.0-gentoo (x86_64), Desktop: Xfce 4.12, Display Server: X Server 1.19.3, Display Driver: amdgpu 1.3.0, OpenGL: 4.5 Mesa 17.1.3 Gallium 0.4 (LLVM 4.0.0), Vulkan: 1.0.3, Compiler: GCC 6.3.0 + Clang 4.0.0 + LLVM 4.0.0, File-System: ext4, Screen Resolution: 1920x1080
Processor Notes: Scaling Governor: intel_pstate powersave
Graphics Notes: GLAMOR
Testing initiated at 24 June 2017 17:05 by user hans.