Ryzen 3900X single core 12 PBO auto
AMD Ryzen 9 5900X 12-Core testing with a MSI MAG X570 TOMAHAWK WIFI (MS-7C84) v1.0 (1.61 BIOS) and Sapphire AMD Radeon RX 56/64 8GB on ManjaroLinux 20.2.1 via the Phoronix Test Suite.


AMD Ryzen 9 3900X 12-Core: 

	Processor: AMD Ryzen 9 3900X 12-Core @ 3.80GHz (12 Cores / 24 Threads), Motherboard: MSI B450 TOMAHAWK (MS-7C02) v1.0 (1.90 BIOS), Chipset: AMD Device 1480, Memory: 16384MB, Disk: Samsung SSD 970 EVO 250GB + 2000GB Seagate ST2000LX001-1RG1 + 2000GB Western Digital WD20EZRZ-00Z + 1000GB Samsung SSD 860, Graphics: AMD Radeon RX 64 (1630/945MHz), Audio: AMD Device aaf8, Monitor: SAMSUNG, Network: Realtek RTL8111/8168/8411

	OS: Ubuntu 18.04, Kernel: 5.2.0-8.1-liquorix-amd64 (x86_64), Display Server: X Server 1.20.4, Display Driver: amdgpu 19.0.1, Vulkan: 1.1.107, Compiler: GCC 7.4.0, File-System: ext4, Screen Resolution: 1920x1080

AMD Ryzen 9 5900X 12-Core: 

	Processor: AMD Ryzen 9 5900X 12-Core @ 5.99GHz (12 Cores / 24 Threads), Motherboard: MSI MAG X570 TOMAHAWK WIFI (MS-7C84) v1.0 (1.61 BIOS), Chipset: AMD Starship/Matisse, Memory: 32GB, Disk: 256GB Samsung SSD 850 + 2 x 1000GB SanDisk SDSSDH3 + 3001GB Western Digital WD30EZRX-00D + 250GB Samsung SSD 840, Graphics: Sapphire AMD Radeon RX 56/64 8GB (1650/960MHz), Audio: AMD Vega 10 HDMI Audio, Monitor: HP E232 + DELL U2414H, Network: Realtek RTL8125 2.5GbE + Intel Wi-Fi 6 AX200

	OS: ManjaroLinux 20.2.1, Kernel: 5.10.19-1-MANJARO (x86_64), Desktop: KDE Plasma 5.21.2, Display Server: X Server 1.20.10, OpenGL: 4.6 Mesa 21.1.0-devel (git-a8423eb732) (LLVM 11.1.0), OpenCL: OpenCL 1.1 Mesa 21.1.0-devel (git-a8423eb732) + OpenCL 2.0 AMD-APP.dbg (3212.0), Vulkan: 1.2.168, Compiler: GCC 10.2.0 + Clang 11.1.0 + LLVM 11.1.0, File-System: ext4, Screen Resolution: 3000x1920


SciMark 2.0
Computational Test: Fast Fourier Transform
Mflops > Higher Is Better
AMD Ryzen 9 3900X 12-Core . 303.66 |========================
AMD Ryzen 9 5900X 12-Core . 537.84 |===========================================


SciMark 2.0
CPU Frequency (CPU0) Monitor
Megahertz < Lower Is Better
AMD Ryzen 9 3900X 12-Core . MIN: 2125  AVG: 4120  MAX: 4502