z820 2 x Intel Xeon E5-2670 0 testing with a HP 158B (J63 v03.96 BIOS) and NVIDIA Quadro K4200 4GB on Ubuntu 18.04 via the Phoronix Test Suite. z820 k4200: Processor: 2 x Intel Xeon E5-2670 0 @ 3.30GHz (16 Cores / 32 Threads), Motherboard: HP 158B (J63 v03.96 BIOS), Chipset: Intel Xeon E5/Core, Memory: 64GB, Disk: 1024GB PC300 NVMe SK hynix 1TB + 1999GB Logical Volume + 128GB MTFDDAK128MAM-1J + 1000GB Seagate ST1000DM003-1CH1, Graphics: NVIDIA Quadro K4200 4GB (324/324MHz), Audio: Realtek ALC262, Monitor: CG241W, Network: Intel 82579LM + Intel 82574L OS: Ubuntu 18.04, Kernel: 4.15.0-88-generic (x86_64), Desktop: GNOME Shell 3.28.4, Display Server: X Server 1.19.6, Display Driver: NVIDIA 440.33.01, OpenCL: OpenCL 1.2 CUDA 10.2.95, Compiler: GCC 7.5.0 + CUDA 10.2, File-System: ext4, Screen Resolution: 1920x1200 Darktable 2.4.2 Test: Boat - Acceleration: OpenCL Seconds < Lower Is Better z820 k4200 . 6.430 |=========================================================== Darktable 2.4.2 Test: Boat - Acceleration: CPU-only Seconds < Lower Is Better z820 k4200 . 10.21 |=========================================================== Darktable 2.4.2 Test: Masskrug - Acceleration: OpenCL Seconds < Lower Is Better z820 k4200 . 7.381 |=========================================================== Darktable 2.4.2 Test: Masskrug - Acceleration: CPU-only Seconds < Lower Is Better z820 k4200 . 8.315 |=========================================================== Darktable 2.4.2 Test: Server Rack - Acceleration: OpenCL Seconds < Lower Is Better z820 k4200 . 0.357 |=========================================================== Darktable 2.4.2 Test: Server Room - Acceleration: OpenCL Seconds < Lower Is Better z820 k4200 . 3.318 |=========================================================== Darktable 2.4.2 Test: Server Rack - Acceleration: CPU-only Seconds < Lower Is Better z820 k4200 . 0.205 |=========================================================== Darktable 2.4.2 Test: Server Room - Acceleration: CPU-only Seconds < Lower Is Better z820 k4200 . 4.808 |===========================================================