build ffmpeg 5900X AMD Ryzen 9 5900X 12-Core testing with a ASUS ROG CROSSHAIR VIII HERO (2702 BIOS) and llvmpipe on Ubuntu 20.04 via the Phoronix Test Suite. AMD Ryzen 9 5900X 12-Core: Processor: AMD Ryzen 9 5900X 12-Core @ 3.70GHz (12 Cores / 24 Threads), Motherboard: ASUS ROG CROSSHAIR VIII HERO (2702 BIOS), Chipset: AMD Starship/Matisse, Memory: 16GB, Disk: 1000GB Sabrent Rocket 4.0 1TB, Graphics: llvmpipe, Audio: AMD Device ab28, Network: Realtek RTL8125 2.5GbE + Intel I211 OS: Ubuntu 20.04, Kernel: 5.4.0-56-generic (x86_64), Desktop: GNOME Shell 3.36.4, Display Server: X Server 1.20.8, Display Driver: modesetting 1.20.8, OpenGL: 3.3 Mesa 20.0.8 (LLVM 10.0.0 128 bits), Compiler: GCC 9.3.0, File-System: ext4, Screen Resolution: 3840x2160 2: Processor: AMD Ryzen 9 5900X 12-Core @ 3.70GHz (12 Cores / 24 Threads), Motherboard: ASUS ROG CROSSHAIR VIII HERO (2702 BIOS), Chipset: AMD Starship/Matisse, Memory: 16GB, Disk: 1000GB Sabrent Rocket 4.0 1TB, Graphics: llvmpipe, Audio: AMD Device ab28, Network: Realtek RTL8125 2.5GbE + Intel I211 OS: Ubuntu 20.04, Kernel: 5.4.0-56-generic (x86_64), Desktop: GNOME Shell 3.36.4, Display Server: X Server 1.20.8, Display Driver: modesetting 1.20.8, OpenGL: 3.3 Mesa 20.0.8 (LLVM 10.0.0 128 bits), Compiler: GCC 9.3.0, File-System: ext4, Screen Resolution: 3840x2160 3: Processor: AMD Ryzen 9 5900X 12-Core @ 3.70GHz (12 Cores / 24 Threads), Motherboard: ASUS ROG CROSSHAIR VIII HERO (2702 BIOS), Chipset: AMD Starship/Matisse, Memory: 16GB, Disk: 1000GB Sabrent Rocket 4.0 1TB, Graphics: llvmpipe, Audio: AMD Device ab28, Network: Realtek RTL8125 2.5GbE + Intel I211 OS: Ubuntu 20.04, Kernel: 5.4.0-56-generic (x86_64), Desktop: GNOME Shell 3.36.4, Display Server: X Server 1.20.8, Display Driver: modesetting 1.20.8, OpenGL: 3.3 Mesa 20.0.8 (LLVM 10.0.0 128 bits), Compiler: GCC 9.3.0, File-System: ext4, Screen Resolution: 3840x2160 4: Processor: AMD Ryzen 9 5900X 12-Core @ 3.70GHz (12 Cores / 24 Threads), Motherboard: ASUS ROG CROSSHAIR VIII HERO (2702 BIOS), Chipset: AMD Starship/Matisse, Memory: 16GB, Disk: 1000GB Sabrent Rocket 4.0 1TB, Graphics: llvmpipe, Audio: AMD Device ab28, Network: Realtek RTL8125 2.5GbE + Intel I211 OS: Ubuntu 20.04, Kernel: 5.4.0-56-generic (x86_64), Desktop: GNOME Shell 3.36.4, Display Server: X Server 1.20.8, Display Driver: modesetting 1.20.8, OpenGL: 3.3 Mesa 20.0.8 (LLVM 10.0.0 128 bits), Compiler: GCC 9.3.0, File-System: ext4, Screen Resolution: 3840x2160 Timed FFmpeg Compilation 4.2.2 Time To Compile Seconds < Lower Is Better AMD Ryzen 9 5900X 12-Core . 34.22 |============================================ 2 ......................... 33.98 |============================================ 3 ......................... 34.20 |============================================ 4 ......................... 34.21 |============================================