/root/ VirtualBox 4.2.0 testing on Ubuntu 12.04 via the Phoronix Test Suite. memtest: Processor: AMD A4-5300B APU @ 3.39GHz (2 Cores), Motherboard: Oracle VirtualBox v1.2, Chipset: Intel 440FX- 82441FX PMC, Memory: 1024MB, Disk: 86GB VBOX HDD, Graphics: InnoTek VirtualBox, Network: Intel 82540EM Gigabit OS: Ubuntu 12.04, Kernel: 3.2.0-23-generic (x86_64), Display Driver: fbdev 0.4.2, Compiler: GCC 4.6.3, File-System: ext4, Screen Resolution: 640x480, System Layer: VirtualBox 4.2.0 RAMspeed SMP 3.5.0 Type: Average - Benchmark: Integer MB/s > Higher Is Better memtest . 3824.03 |============================================================ RAMspeed SMP 3.5.0 Type: Average - Benchmark: Floating Point MB/s > Higher Is Better memtest . 3891.34 |============================================================