Kubuntu20_04GTX1660 AMD A8-6600K APU testing with a ASUS A88XM-A (1801 BIOS) and MSI NVIDIA GeForce GTX 1660 6GB on Ubuntu 20.04 via the Phoronix Test Suite. Kubuntu 20.04 Nvidia GTX1660: Processor: AMD A8-6600K APU @ 3.90GHz (2 Cores / 4 Threads), Motherboard: ASUS A88XM-A (1801 BIOS), Chipset: AMD 15h, Memory: 16GB, Disk: 120GB KINGSTON SV300S3 + 1000GB Seagate ST1000DM003-1ER1 + 1000GB Seagate ST1000DM003-1CH1, Graphics: MSI NVIDIA GeForce GTX 1660 6GB, Audio: AMD FCH Azalia, Monitor: BenQ LCD, Network: Realtek RTL8111/8168/8411 OS: Ubuntu 20.04, Kernel: 5.8.0-53-generic (x86_64), Desktop: KDE Plasma 5.18.5, Display Server: X Server 1.20.9, Display Driver: NVIDIA 460.73.01, File-System: ext4, Screen Resolution: 2560x1440 Darktable 3.4.1 Test: Boat - Acceleration: OpenCL Seconds < Lower Is Better Kubuntu 20.04 Nvidia GTX1660 . 5.891 |========================================= Darktable 3.4.1 Test: Boat - Acceleration: CPU-only Seconds < Lower Is Better Kubuntu 20.04 Nvidia GTX1660 . 47.33 |========================================= Darktable 3.4.1 Test: Masskrug - Acceleration: OpenCL Seconds < Lower Is Better Kubuntu 20.04 Nvidia GTX1660 . 13.63 |========================================= Darktable 3.4.1 Test: Masskrug - Acceleration: CPU-only Seconds < Lower Is Better Kubuntu 20.04 Nvidia GTX1660 . 51.99 |========================================= Darktable 3.4.1 Test: Server Rack - Acceleration: OpenCL Seconds < Lower Is Better Kubuntu 20.04 Nvidia GTX1660 . 0.315 |========================================= Darktable 3.4.1 Test: Server Room - Acceleration: OpenCL Seconds < Lower Is Better Kubuntu 20.04 Nvidia GTX1660 . 1.933 |========================================= Darktable 3.4.1 Test: Server Rack - Acceleration: CPU-only Seconds < Lower Is Better Kubuntu 20.04 Nvidia GTX1660 . 0.762 |========================================= Darktable 3.4.1 Test: Server Room - Acceleration: CPU-only Seconds < Lower Is Better Kubuntu 20.04 Nvidia GTX1660 . 46.82 |=========================================