Core i7-920 with 3 x 2GB DDR3-1600 CAS7 RAM Intel Core i7 920 testing with a ASRock X58 Extreme and Sapphire AMD Radeon HD 4850 1024MB on Ubuntu 16.04 via the Phoronix Test Suite. OCd to DDR3-1333 @ 1.564V: Processor: Intel Core i7 920 @ 2.67GHz (8 Cores), Motherboard: ASRock X58 Extreme, Chipset: Intel 5520/5500/X58 + ICH10R, Memory: 6144MB, Disk: 250GB Western Digital WD2500JB-22E, Graphics: Sapphire AMD Radeon HD 4850 1024MB, Audio: Realtek ALC889A, Monitor: SAMSUNG, Network: Realtek RTL8111/8168/8411 OS: Ubuntu 16.04, Kernel: 4.4.0-24-generic (x86_64), Desktop: Unity 7.4.0, Display Server: X Server 1.18.3, Display Driver: modesetting 1.18.3, OpenGL: 3.3 Mesa 11.2.0 Gallium 0.4, Compiler: GCC 5.3.1 20160413, File-System: ext4, Screen Resolution: 1920x1080 RAMspeed SMP 3.5.0 Integer Add MB/s > Higher Is Better OCd to DDR3-1333 @ 1.564V . 14177.74 |========================================= RAMspeed SMP 3.5.0 Integer Copy MB/s > Higher Is Better OCd to DDR3-1333 @ 1.564V . 14650.73 |========================================= RAMspeed SMP 3.5.0 Integer Scale MB/s > Higher Is Better OCd to DDR3-1333 @ 1.564V . 14676.29 |========================================= RAMspeed SMP 3.5.0 Floating-Point Add MB/s > Higher Is Better OCd to DDR3-1333 @ 1.564V . 15392.39 |========================================= Stream 2013-01-17 Add MB/s > Higher Is Better OCd to DDR3-1333 @ 1.564V . 15124.32 |========================================= Stream 2013-01-17 Copy MB/s > Higher Is Better OCd to DDR3-1333 @ 1.564V . 14687.86 |========================================= Stream 2013-01-17 Scale MB/s > Higher Is Better OCd to DDR3-1333 @ 1.564V . 14472.50 |=========================================