C-RAY test before tuning: Processor: Intel Core i7-4770 @ 3.90GHz (8 Cores), Motherboard: MSI Z87-G43 (MS-7816) v1.0, Chipset: Intel 4th Gen Core DRAM, Memory: 16384MB, Disk: 2 x 250GB Samsung SSD 850 + 1000GB Western Digital WD10EZEX-08M, Graphics: MSI NVIDIA GeForce GTX 970 4096MB (1328/3505MHz), Audio: Realtek ALC892, Network: Realtek RTL8111/8168/8411 OS: Ubuntu 18.04, Kernel: 4.15.0-23-generic (x86_64), Desktop: GNOME Shell 3.28.1, Display Driver: NVIDIA 396.24.02, Compiler: Clang 6.0.0-1ubuntu2, File-System: ext4, Screen Resolution: 4480x1440 performance: Processor: Intel Core i7-4770 @ 3.90GHz (8 Cores), Motherboard: MSI Z87-G43 (MS-7816) v1.0, Chipset: Intel 4th Gen Core DRAM, Memory: 16384MB, Disk: 2 x 250GB Samsung SSD 850 + 1000GB Western Digital WD10EZEX-08M, Graphics: MSI NVIDIA GeForce GTX 970 4096MB (1101/3505MHz), Audio: Realtek ALC892, Network: Realtek RTL8111/8168/8411 OS: Ubuntu 18.04, Kernel: 4.15.0-23-generic (x86_64), Desktop: GNOME Shell 3.28.1, Display Driver: NVIDIA 396.24.02, OpenGL: 4.6.0, Compiler: Clang 6.0.0-1ubuntu2, File-System: ext4, Screen Resolution: 4480x1440 C-Ray 1.1 Total Time Seconds < Lower Is Better before tuning . 24.89 |======================================================== performance ... 25.06 |========================================================