dd Intel Core i5-3320M testing with a LENOVO 62772C8 and Intel HD 4000 1024MB on Ubuntu 15.04 via the Phoronix Test Suite. dd: Processor: Intel Core i5-3320M @ 3.30GHz (4 Cores), Motherboard: LENOVO 62772C8, Chipset: Intel 3rd Gen Core DRAM, Memory: 4096MB, Disk: 500GB TOSHIBA MQ01ABF0, Graphics: Intel HD 4000 1024MB (1200MHz), Audio: Intel 7 /C210, Network: Realtek RTL8111/8168/8411 + Broadcom BCM43142 802.11b/g/n OS: Ubuntu 15.04, Kernel: 3.18.0-13-generic (i686), Desktop: Unity 7.3.1, Display Server: X Server 1.16.2.901 (1.16.3 RC 1), Display Driver: intel 2.99.917, OpenGL: 3.3 Mesa 10.5.0-rc1, Compiler: GCC 4.9.2, File-System: ext4, Screen Resolution: 1366x768 x11perf 1.5 Test: 500px PutImage Square Operations / Second > Higher Is Better dd . 2365 |==================================================================== x11perf 1.5 Test: Scrolling 500 x 500 px Operations / Second > Higher Is Better dd . 8107 |==================================================================== x11perf 1.5 Test: Char in 80-char aa line Operations / Second > Higher Is Better dd . 8473333 |================================================================= x11perf 1.5 Test: PutImage XY 500x500 Square Operations / Second > Higher Is Better dd . 158 |===================================================================== x11perf 1.5 Test: Fill 300 x 300px AA Trapezoid Operations / Second > Higher Is Better dd . 290333 |================================================================== x11perf 1.5 Test: 500px Copy From Window To Window Operations / Second > Higher Is Better dd . 8013 |==================================================================== x11perf 1.5 Test: Copy 500x500 From Pixmap To Pixmap Operations / Second > Higher Is Better dd . 8040 |==================================================================== x11perf 1.5 Test: 500px Compositing From Pixmap To Window Operations / Second > Higher Is Better dd . 12720 |=================================================================== x11perf 1.5 Test: 500px Compositing From Window To Window Operations / Second > Higher Is Better dd . 15667 |===================================================================