Source Engine GTX 980 Ubuntu Intel Core i7-5960X testing with a Gigabyte X99-UD4-CF and NVIDIA GeForce GTX 980 4096MB on Ubuntu 15.04 via the Phoronix Test Suite. NVIDIA GeForce GTX 980: Processor: Intel Core i7-5960X @ 3.50GHz (16 Cores), Motherboard: Gigabyte X99-UD4-CF, Chipset: Intel Xeon E5 v3/Core, Memory: 16384MB, Disk: 120GB Samsung SSD 850 + 120GB OCZ VECTOR150, Graphics: NVIDIA GeForce GTX 980 4096MB (1126/3505MHz), Audio: Intel C610/X99, Monitor: SEK SE39UY04, Network: Intel Connection OS: Ubuntu 15.04, Kernel: 3.19.0-9-generic (x86_64), Desktop: Unity 7.3.1, Display Server: X Server 1.17.1, Display Driver: NVIDIA 346.47, OpenGL: 4.4.0, Compiler: GCC 4.9.2, File-System: ext4, Screen Resolution: 3840x2160 Counter-Strike: Global Offensive Resolution: 3840 x 2160 Frames Per Second > Higher Is Better NVIDIA GeForce GTX 980 . 138.55 |============================================== Team Fortress 2 Resolution: 3840 x 2160 Frames Per Second > Higher Is Better NVIDIA GeForce GTX 980 . 150.24 |==============================================