x265 ampere ARMv8 Neoverse-N1 testing with a System76 Thelio Astra (3.02 BIOS) and NVIDIA RTX A400/PCIe 4GB on Ubuntu 24.04 via the Phoronix Test Suite. a: Processor: ARMv8 Neoverse-N1 @ 3.00GHz (128 Cores), Motherboard: System76 Thelio Astra (3.02 BIOS), Chipset: Ampere Computing LLC Altra PCI Root Complex A, Memory: 8 x 32GB DDR4-3200MT/s Micron 18ASF4G72PDZ-3G2F1, Disk: 1024GB KINGSTON SKC3000S1024G, Graphics: NVIDIA RTX A400/PCIe 4GB, Audio: NVIDIA Device 2291, Monitor: DELL P2415Q, Network: 2 x Intel X550 + Intel I210 OS: Ubuntu 24.04, Kernel: 6.8.0-48-generic-64k (aarch64), Desktop: GNOME Shell 46.0, Display Server: X Server, Display Driver: NVIDIA 550.120, OpenGL: 4.6.0, Compiler: GCC 13.2.0, File-System: ext4, Screen Resolution: 3840x2160 b: Processor: ARMv8 Neoverse-N1 @ 3.00GHz (128 Cores), Motherboard: System76 Thelio Astra (3.02 BIOS), Chipset: Ampere Computing LLC Altra PCI Root Complex A, Memory: 8 x 32GB DDR4-3200MT/s Micron 18ASF4G72PDZ-3G2F1, Disk: 1024GB KINGSTON SKC3000S1024G, Graphics: NVIDIA RTX A400/PCIe 4GB, Audio: NVIDIA Device 2291, Monitor: DELL P2415Q, Network: 2 x Intel X550 + Intel I210 OS: Ubuntu 24.04, Kernel: 6.8.0-48-generic-64k (aarch64), Desktop: GNOME Shell 46.0, Display Server: X Server, Display Driver: NVIDIA 550.120, OpenGL: 4.6.0, Compiler: GCC 13.2.0, File-System: ext4, Screen Resolution: 3840x2160 c: Processor: ARMv8 Neoverse-N1 @ 3.00GHz (128 Cores), Motherboard: System76 Thelio Astra (3.02 BIOS), Chipset: Ampere Computing LLC Altra PCI Root Complex A, Memory: 8 x 32GB DDR4-3200MT/s Micron 18ASF4G72PDZ-3G2F1, Disk: 1024GB KINGSTON SKC3000S1024G, Graphics: NVIDIA RTX A400/PCIe 4GB, Audio: NVIDIA Device 2291, Monitor: DELL P2415Q, Network: 2 x Intel X550 + Intel I210 OS: Ubuntu 24.04, Kernel: 6.8.0-48-generic-64k (aarch64), Desktop: GNOME Shell 46.0, Display Server: X Server, Display Driver: NVIDIA 550.120, OpenGL: 4.6.0, Compiler: GCC 13.2.0, File-System: ext4, Screen Resolution: 3840x2160 d: Processor: ARMv8 Neoverse-N1 @ 3.00GHz (128 Cores), Motherboard: System76 Thelio Astra (3.02 BIOS), Chipset: Ampere Computing LLC Altra PCI Root Complex A, Memory: 8 x 32GB DDR4-3200MT/s Micron 18ASF4G72PDZ-3G2F1, Disk: 1024GB KINGSTON SKC3000S1024G, Graphics: NVIDIA RTX A400/PCIe 4GB, Audio: NVIDIA Device 2291, Monitor: DELL P2415Q, Network: 2 x Intel X550 + Intel I210 OS: Ubuntu 24.04, Kernel: 6.8.0-48-generic-64k (aarch64), Desktop: GNOME Shell 46.0, Display Server: X Server, Display Driver: NVIDIA 550.120, OpenGL: 4.6.0, Compiler: GCC 13.2.0, File-System: ext4, Screen Resolution: 3840x2160 x265 4.1 Video Input: Bosphorus 4K Frames Per Second > Higher Is Better a . 14.49 |=================================================================== b . 14.58 |=================================================================== c . 14.74 |==================================================================== d . 14.42 |=================================================================== x265 4.1 Video Input: Bosphorus 1080p Frames Per Second > Higher Is Better a . 20.46 |==================================================================== b . 20.59 |==================================================================== c . 20.48 |==================================================================== d . 20.43 |===================================================================