stretch Intel Core i5-5200U testing with a Dell 0TM99H and Intel HD 5500 (Broadwell GT2) 3072MB on Debian testing via the Phoronix Test Suite. xps13: Processor: Intel Core i5-5200U @ 2.70GHz (4 Cores), Motherboard: Dell 0TM99H, Chipset: Intel Broadwell-U-OPI, Memory: 8192MB, Disk: 256GB SAMSUNG SSD PM85, Graphics: Intel HD 5500 (Broadwell GT2) 3072MB, Audio: Intel Broadwell-U Audio, Network: Broadcom Limited BCM4352 802.11ac Wireless OS: Debian testing, Kernel: 4.9.0-1-amd64 (x86_64), Desktop: GNOME Shell 3.22.2, Display Server: X Server 1.19.0, Display Driver: modesetting 1.19.0, OpenGL: 4.5 Mesa 13.0.2, Compiler: GCC 6.2.1 20161124, File-System: btrfs, Screen Resolution: 1920x1080 Darktable 2.2.1 Test: Boat - Acceleration: OpenCL Seconds < Lower Is Better xps13 . 56.26 |================================================================ Darktable 2.2.1 Test: Masskrug - Acceleration: OpenCL Seconds < Lower Is Better xps13 . 39.61 |================================================================ Darktable 2.2.1 Test: Server Room - Acceleration: OpenCL Seconds < Lower Is Better xps13 . 32.30 |================================================================