2D Radeon Intel Core i7-5960X testing with a Gigabyte X99-UD4-CF and XFX AMD Radeon R9 290 4096MB on Ubuntu 15.04 via the Phoronix Test Suite. Ubuntu 15.04: Processor: Intel Core i7-5960X @ 3.50GHz (16 Cores), Motherboard: Gigabyte X99-UD4-CF, Chipset: Intel Xeon E5 v3/Core, Memory: 16384MB, Disk: 120GB OCZ VECTOR150, Graphics: XFX AMD Radeon R9 290 4096MB, Audio: Intel C610/X99, Monitor: SyncMaster, Network: Intel Connection OS: Ubuntu 15.04, Kernel: 3.19.0-15-generic (x86_64), Desktop: Unity 7.3.2, Display Server: X Server 1.17.1, Display Driver: radeon 7.5.0, OpenGL: 3.3 Mesa 10.5.2 Gallium 0.4, Compiler: GCC 4.9.2, File-System: ext4, Screen Resolution: 2560x1600 QGears2 Rendering: XRender Extension - Test: Text Frames Per Second > Higher Is Better Ubuntu 15.04 . 220.86 |======================================================== QGears2 Rendering: XRender Extension - Test: Gears Frames Per Second > Higher Is Better Ubuntu 15.04 . 222.75 |======================================================== QGears2 Rendering: XRender Extension - Test: Image Scaling Frames Per Second > Higher Is Better Ubuntu 15.04 . 1143.79 |======================================================= GtkPerf 0.40 GTK Widget: Total Time Seconds < Lower Is Better Ubuntu 15.04 . 897.27 |======================================================== GtkPerf 0.40 GTK Widget: GtkComboBox Seconds < Lower Is Better Ubuntu 15.04 . 17.13 |========================================================= GtkPerf 0.40 GTK Widget: GtkCheckButton Seconds < Lower Is Better Ubuntu 15.04 . 1.11 |========================================================== GtkPerf 0.40 GTK Widget: GtkRadioButton Seconds < Lower Is Better Ubuntu 15.04 . 10.96 |========================================================= GtkPerf 0.40 GTK Widget: GtkToggleButton Seconds < Lower Is Better Ubuntu 15.04 . 14.81 |========================================================= GtkPerf 0.40 GTK Widget: GtkComboBoxEntry Seconds < Lower Is Better Ubuntu 15.04 . 9.29 |========================================================== GtkPerf 0.40 GTK Widget: GtkTextView - Scroll Seconds < Lower Is Better Ubuntu 15.04 . 0.04 |========================================================== GtkPerf 0.40 GTK Widget: GtkTextView - Add Text Seconds < Lower Is Better Ubuntu 15.04 . 399.02 |======================================================== GtkPerf 0.40 GTK Widget: GtkDrawingArea - Circles Seconds < Lower Is Better Ubuntu 15.04 . 176.47 |======================================================== GtkPerf 0.40 GTK Widget: GtkDrawingArea - Pixbufs Seconds < Lower Is Better Ubuntu 15.04 . 11.53 |=========================================================