teste a slack-xfce: Processor: Intel Core i5-2500 @ 3.30GHz (4 Cores), Motherboard: Oracle VirtualBox v1.2, Chipset: Intel 440FX- 82441FX PMC, Memory: 2560MB, Disk: 32GB VBOX HDD + 2GB VBOX HDD + 54GB VBOX HDD, Graphics: InnoTek VirtualBox, Audio: Intel 82801AA AC 97 Audio, Monitor: VBOX monitor, Network: Intel 82540EM Gigabit OS: Slackware 14.1, Kernel: 3.10.17 (x86_64), Desktop: KDE, Display Server: X Server 1.14.3, Display Driver: modesetting 0.8.0, OpenGL: 2.1 Mesa 9.1.7, Compiler: GCC 4.8.2 + Clang 3.3 + LLVM 3.3, File-System: tmpfs, Screen Resolution: 1280x960, System Layer: VirtualBox 4.3.12 QGears2 Rendering: XRender Extension - Test: Image Scaling Frames Per Second > Higher Is Better slack-xfce . 904.05 |========================================================== Stream 2013-01-17 Type: Copy MB/s > Higher Is Better slack-xfce . 7855.89 |========================================================= FFTE 5.0 Test: N=64, 1D Complex FFT Routine MFLOPS > Higher Is Better slack-xfce . 4718.09 |========================================================= C-Ray 1.1 Total Time Seconds < Lower Is Better slack-xfce . 39.66 |=========================================================== LAME MP3 Encoding 3.99.3 WAV To MP3 Seconds < Lower Is Better slack-xfce . 17.45 |===========================================================