ubuntu test with single gpu run1: Processor: Intel Core i7-3630QM @ 3.40GHz (4 Cores / 8 Threads), Motherboard: LENOVO (6BCN40WWV2.00 BIOS), Chipset: Intel 3rd Gen Core DRAM, Memory: 8192MB, Disk: 240GB SanDisk SSD PLUS, Graphics: NVIDIA GeForce GT 650M 2GB (789/2000MHz), Audio: Realtek ALC269VC, Network: Qualcomm Atheros AR8161 + Qualcomm Atheros AR9485 OS: Ubuntu 18.04, Kernel: 4.15.0-47-generic (x86_64), Desktop: GNOME Shell 3.28.3, Display Server: X Server 1.19.6, Display Driver: NVIDIA 418.56, OpenGL: 4.6.0, Compiler: GCC 7.3.0, File-System: ext4, Screen Resolution: 1920x1080 Unigine Heaven 4.0 Resolution: 800 x 600 - Mode: Fullscreen - Renderer: OpenGL Frames Per Second > Higher Is Better run1 . 36.14 |================================================================= Unigine Heaven 4.0 Resolution: 1024 x 768 - Mode: Fullscreen - Renderer: OpenGL Frames Per Second > Higher Is Better run1 . 27.37 |================================================================= Unigine Heaven 4.0 Resolution: 1280 x 1024 - Mode: Fullscreen - Renderer: OpenGL Frames Per Second > Higher Is Better run1 . 18.94 |================================================================= Unigine Heaven 4.0 Resolution: 1920 x 1080 - Mode: Fullscreen - Renderer: OpenGL Frames Per Second > Higher Is Better run1 . 12.82 |=================================================================