giga AMD Athlon II X4 640 testing with a Gigabyte GA-870A-UD3 and MSI NVIDIA GeForce GTX 560 Ti 1024MB on CentOS 7.1.1503 via the Phoronix Test Suite. giga: Processor: AMD Athlon II X4 640 @ 3.00GHz (4 Cores), Motherboard: Gigabyte GA-870A-UD3, Chipset: AMD RX780/RX790, Memory: 16384MB, Disk: 120GB Western Digital WD1200BB-16C + 640GB Western Digital WD6400AAKS-6 + 1000GB Western Digital WD10EZEX-00Z, Graphics: MSI NVIDIA GeForce GTX 560 Ti 1024MB, Audio: AMD SBx00 Azalia, Monitor: X183H, Network: Realtek RTL8169 PCI Gigabit OS: CentOS 7.1.1503, Kernel: 3.10.0-229.1.2.el7.x86_64 (x86_64), Desktop: GNOME Shell 3.8.4, Display Driver: nouveau 1.0.10, Compiler: GCC 4.8.3 20140911, File-System: xfs, Screen Resolution: 1366x768 AIO-Stress 0.21 Test: Random Write MB/s > Higher Is Better giga . 1266.53 |===============================================================