Encoding AMD Ryzen Linux
Intel Core i9-9900K testing with a EVGA 121-KS-E375 v1.0 (1.09 BIOS) and ASUS NVIDIA GeForce GTX 1080 Ti 11GB on Gentoo 2.6 via the Phoronix Test Suite.


AMD Ryzen 7 1800X Eight-Core: 

	Processor: AMD Ryzen 7 1800X Eight-Core @ 3.60GHz (16 Cores), Motherboard: MSI X370 XPOWER GAMING TITANIUM (MS-7A31) v1.0, Chipset: AMD Device 1450, Memory: 16384MB, Disk: 256GB INTEL SSDPEKKW256G7, Graphics: Sapphire AMD Radeon R9 FURY / NANO 4096MB, Audio: AMD Fiji HDMI/DP, Monitor: DELL P2415Q, Network: Intel I211 Gigabit Connection

	OS: Ubuntu 17.04, Kernel: 4.10.0-9-generic (x86_64), Desktop: Unity 7.5.0, Display Server: X Server 1.18.4, Display Driver: modesetting 1.18.4, OpenGL: 4.5 Mesa 17.0.0- padoka PPA Gallium 0.4 (LLVM 4.0.0), Vulkan: 1.0.39, Compiler: GCC 6.3.0 20161229, File-System: ext4, Screen Resolution: 3840x2160

Intel Core i5-4690K @ 4.20GHz: 

	Processor: Intel Core i5-4690K @ 4.20GHz (4 Cores), Motherboard: ASRock Z87 Pro4, Chipset: Intel 4th Gen Core DRAM, Memory: 16384MB, Disk: 256GB Crucial_CT256MX1 + 2 x 5001GB Seagate ST5000DM000-1FK1 + 250GB CT250BX100SSD1 + 2000GB Expansion Desk, Graphics: Sapphire AMD Radeon R9 380X / R9 M295X 4096MB, Audio: C-Media CMI8788, Monitor: LG Ultra HD + SMBX2450L, Network: Intel Connection I217-V

	OS: Arch rolling, Kernel: 4.10.1-1-ARCH (x86_64), Desktop: KDE Frameworks 5, Display Driver: modesetting 1.19.1, OpenGL: 4.5 Mesa 17.0.0 Gallium 0.4, Vulkan: 1.0.39, Compiler: GCC 6.3.1 20170109 + Clang 3.9.1 + LLVM 3.9.1, File-System: ext4, Screen Resolution: 5760x2160

Intel Core i5-4690K@4.2GHz: 

	Processor: Intel Core i5-4690K @ 4.20GHz (4 Cores), Motherboard: ASRock Z87 Pro4, Chipset: Intel 4th Gen Core DRAM, Memory: 16384MB, Disk: 256GB Crucial_CT256MX1 + 2 x 5001GB Seagate ST5000DM000-1FK1 + 250GB CT250BX100SSD1 + 2000GB Expansion Desk, Graphics: Sapphire AMD Radeon R9 380X / R9 M295X 4096MB, Audio: C-Media CMI8788, Monitor: LG Ultra HD + SMBX2450L, Network: Intel Connection I217-V

	OS: Arch rolling, Kernel: 4.10.1-1-ARCH (x86_64), Desktop: KDE Frameworks 5, Display Driver: modesetting 1.19.1, OpenGL: 4.5 Mesa 17.0.0 Gallium 0.4, Vulkan: 1.0.39, Compiler: GCC 6.3.1 20170109 + Clang 3.9.1 + LLVM 3.9.1, File-System: ext4, Screen Resolution: 5760x2160

9900k-50x50x47x4000c16: 

	Processor: Intel Core i9-9900K @ 5.00GHz (8 Cores / 16 Threads), Motherboard: EVGA 121-KS-E375 v1.0 (1.09 BIOS), Chipset: Intel 8th Gen Core 8-core Desktop, Memory: 16384MB, Disk: Samsung SSD 970 EVO 500GB + 120GB Samsung SSD 840 + 240GB KINGSTON SH103S3 + 2000GB Western Digital WD2003FZEX-0 + 120GB INTEL SSDSC2BW12, Graphics: ASUS NVIDIA GeForce GTX 1080 Ti 11GB, Audio: NVIDIA GP102 HDMI Audio, Monitor: XB271HU, Network: Intel I219-V

	OS: Gentoo 2.6, Kernel: 5.2.3-ck (x86_64), Desktop: KDE Plasma, Display Server: X Server 1.20.5, Compiler: GCC 9.2.0 + Clang 8.0.1 + LLVM 8.0.1 + CUDA 10.1, File-System: reiserfs


FFmpeg 2.8.1
H.264 HD To NTSC DV
Seconds < Lower Is Better
AMD Ryzen 7 1800X Eight-Core . 13.66 |=========================================
Intel Core i5-4690K@4.2GHz ... 10.74 |================================
9900k-50x50x47x4000c16 ....... 6.70  |====================


FLAC Audio Encoding 1.3.1
WAV To FLAC
Seconds < Lower Is Better
AMD Ryzen 7 1800X Eight-Core . 5.71 |==========================================
Intel Core i5-4690K@4.2GHz ... 5.21 |======================================
9900k-50x50x47x4000c16 ....... 4.24 |===============================


VP8 libvpx Encoding 1.6.0
vpxenc
Frames Per Second > Higher Is Better
AMD Ryzen 7 1800X Eight-Core . 1.06 |======================================
Intel Core i5-4690K@4.2GHz ... 1.16 |==========================================
9900k-50x50x47x4000c16 ....... 1.01 |=====================================


LAME MP3 Encoding 3.99.3
WAV To MP3
Seconds < Lower Is Better
AMD Ryzen 7 1800X Eight-Core . 9.80 |==========================================
Intel Core i5-4690K@4.2GHz ... 9.21 |=======================================