gtx660ti_12_03_2018 AMD Ryzen 7 1700 Eight-Core testing with a ASRock X370 Killer SLI (P3.40 BIOS) and eVGA NVIDIA GeForce GTX 660 Ti 2048MB on Ubuntu 17.10 via the Phoronix Test Suite. gtx660ti: Processor: AMD Ryzen 7 1700 Eight-Core @ 3.79GHz (8 Cores / 16 Threads), Motherboard: ASRock X370 Killer SLI (P3.40 BIOS), Chipset: AMD Device 1450, Memory: 16384MB, Disk: 128GB TS128GSSD360S + 250GB Samsung SSD 850 + 1000GB Western Digital WD10EADS-11M + 1000GB Western Digital WD10EZEX-00W + 256GB MTFDDAK256MAM-1K, Graphics: eVGA NVIDIA GeForce GTX 660 Ti 2048MB (1045/3004MHz), Audio: C-Media CMI8788, Monitor: SyncMaster, Network: Intel I211 Gigabit Connection OS: Ubuntu 17.10, Kernel: 4.14.4-041404-generic (x86_64), Desktop: GNOME Shell 3.26.2, Display Driver: NVIDIA 384.111, OpenGL: 4.5.0, Compiler: GCC 7.2.0 + Clang 4.0.1-6, File-System: ext4, Screen Resolution: 3840x1080 Darktable 2.5.0~git277.42cfe8aeb Test: Boat - Acceleration: OpenCL Seconds < Lower Is Better gtx660ti . 18.59 |============================================================= Darktable 2.5.0~git277.42cfe8aeb Test: Masskrug - Acceleration: OpenCL Seconds < Lower Is Better gtx660ti . 7.70 |============================================================== Darktable 2.5.0~git277.42cfe8aeb Test: Server Room - Acceleration: OpenCL Seconds < Lower Is Better gtx660ti . 4.30 |==============================================================