n 2 x Intel Xeon X5660 testing with a Supermicro X8DT3 v2.0 and Matrox s MGA G200eW WPCM450 1024MB on Ubuntu 14.04 via the Phoronix Test Suite. Intel 82576 Gigabit Connection: Processor: 2 x Intel Xeon X5660 @ 2.80GHz (24 Cores), Motherboard: Supermicro X8DT3 v2.0, Chipset: Intel 5520 I/O + ICH10R, Memory: 97280MB, Disk: 240GB OCZ ARC100, Graphics: LLVMpipe, Audio: ATI R6xx HDMI, Network: Intel 82576 Gigabit Connection OS: Ubuntu 14.04, Kernel: 3.13.0-74-generic (x86_64), Desktop: Unity 7.2.6, Display Server: X Server 1.15.1, Display Driver: radeon 7.3.0, OpenGL: 2.1 Mesa 10.1.3 Gallium 0.4, Compiler: GCC 4.8 + Clang 3.3 + LLVM 3.3, File-System: ext4, Screen Resolution: 1920x1200 Loopback TCP Network Performance Time To Transfer 10GB Via Loopback Seconds < Lower Is Better Intel 82576 Gigabit Connection . 3.02 |========================================