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2 x Intel Xeon Platinum 8280 testing with a GIGABYTE MD61-SC2-00 v01000100 (T15 BIOS) and llvmpipe on Ubuntu 20.04 via the Phoronix Test Suite.


POWER9 44c 176t: 

	Processor: POWER9 @ 3.80GHz (44 Cores / 176 Threads), Motherboard: PowerNV T2P9D01 REV 1.01, Memory: 64GB, Disk: 500GB Samsung SSD 860, Graphics: ASPEED, Monitor: VE228, Network: 2 x Broadcom NetXtreme BCM5719 PCIe

	OS: Ubuntu 20.10, Kernel: 5.9.10-050910-generic (ppc64le), Display Server: X Server, Compiler: GCC 10.2.0, File-System: ext4, Screen Resolution: 1920x1080

EPYC 7742 2P: 

	Processor: 2 x AMD EPYC 7742 64-Core @ 2.25GHz (128 Cores / 256 Threads), Motherboard: AMD DAYTONA_X (RDY1006G BIOS), Chipset: AMD Starship/Matisse, Memory: 504GB, Disk: 2 x 3841GB Micron_9300_MTFDHAL3T8TDP, Graphics: llvmpipe, Monitor: VE228, Network: 2 x Mellanox MT27710

	OS: Ubuntu 20.04, Kernel: 5.4.0-48-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: 1920x1080

Xeon Platinum 8280 2P: 

	Processor: 2 x Intel Xeon Platinum 8280 @ 4.00GHz (56 Cores / 112 Threads), Motherboard: GIGABYTE MD61-SC2-00 v01000100 (T15 BIOS), Chipset: Intel Sky Lake-E DMI3 Registers, Memory: 378GB, Disk: 280GB INTEL SSDPED1D280GA, Graphics: llvmpipe, Monitor: VE228, Network: 2 x Intel X722 for 1GbE + 2 x QLogic FastLinQ QL41000 10/25/40/50GbE

	OS: Ubuntu 20.04, Kernel: 5.4.0-18-generic (x86_64), Desktop: GNOME Shell 3.36.0, Display Server: X Server 1.20.7, Display Driver: modesetting 1.20.7, OpenGL: 3.3 Mesa 20.0.2 (LLVM 9.0.1 256 bits), Compiler: GCC 9.3.0, File-System: ext4, Screen Resolution: 1920x1080


dav1d 0.7.0
Video Input: Chimera 1080p
FPS > Higher Is Better
POWER9 44c 176t ....... 172.82 |=========
EPYC 7742 2P .......... 884.58 |===============================================
Xeon Platinum 8280 2P . 406.17 |======================


dav1d 0.7.0
Video Input: Summer Nature 4K
FPS > Higher Is Better
POWER9 44c 176t ....... 89.41  |============
EPYC 7742 2P .......... 351.73 |===============================================
Xeon Platinum 8280 2P . 227.43 |==============================


dav1d 0.7.0
Video Input: Summer Nature 1080p
FPS > Higher Is Better
POWER9 44c 176t ....... 263.89 |===============
EPYC 7742 2P .......... 835.71 |===============================================
Xeon Platinum 8280 2P . 437.47 |=========================


dav1d 0.7.0
Video Input: Chimera 1080p 10-bit
FPS > Higher Is Better
POWER9 44c 176t ....... 108.67 |============================
EPYC 7742 2P .......... 183.63 |===============================================
Xeon Platinum 8280 2P . 84.48  |======================


dav1d 0.8.1
Video Input: Chimera 1080p
FPS > Higher Is Better
POWER9 44c 176t ....... 170.72 |=========
EPYC 7742 2P .......... 893.76 |===============================================
Xeon Platinum 8280 2P . 404.42 |=====================


dav1d 0.8.1
Video Input: Summer Nature 4K
FPS > Higher Is Better
POWER9 44c 176t ....... 91.02  |===========
EPYC 7742 2P .......... 403.23 |===============================================
Xeon Platinum 8280 2P . 239.82 |============================


dav1d 0.8.1
Video Input: Summer Nature 1080p
FPS > Higher Is Better
POWER9 44c 176t ....... 264.95 |=============
EPYC 7742 2P .......... 926.66 |===============================================
Xeon Platinum 8280 2P . 444.18 |=======================


dav1d 0.8.1
Video Input: Chimera 1080p 10-bit
FPS > Higher Is Better
POWER9 44c 176t ....... 111.64 |============================
EPYC 7742 2P .......... 185.28 |===============================================
Xeon Platinum 8280 2P . 85.55  |======================