Winrar for linux does not have Benchmark. same with 7z. have installed Winrar & 7zip 32-bits for windows, could not install 64-Bit versions. *did not installed in KXStudio 10.x Generic Kernel... *but installed ok in KXStudio 10.x with RT Kernel. also Ubuntu 10.x generic kernel. Board: MSI X58 Eclipse sli i7 920 with Visa sp1 x64 Winrar 4 benchmark did: 4040kb/s with W7 x64 did: 3030kb/s (some cpu were unused in taskmanager) Linux amd64 Wine 1.3.26 does: 2060kb/s the difference is 64 bit Winrar vs. 32-Bit Winrar... similar happens with 7zip benchmark. did like ~16.000 in Windows, does ~8000 in Wine. i know 64-Bit is faster. but that much? could be a kernel issue? a memory issue? Wine Bug: can`t install 64-Bit WinRar or 7zip. to see if its a memory issue. other benchmarks run ok in Wine... for example: Unigine Tropics 1.3 Linux OpenGL vs. Wine OpenGL.