Bootcamp vs Parallel for H.264 Encoding with TMPGENC

Discussion in 'Windows, Linux & Others on the Mac' started by genea, Aug 1, 2011.

  1. genea macrumors newbie

    Aug 1, 2011
    IMAC 2011 Core i7 3.4ghz 16MB RAM

    I need to run TMPGENC Video Mastering Video Works 5 for windows under my new IMac. TMPGENC has specific libraries to utilize Sandy Bridge Chip for H.264 encoding. Would running under boot camp vs. parallel makes a difference?
  2. Mr. Retrofire macrumors 601

    Mr. Retrofire

    Mar 2, 2010
    x264 is pretty good optimized for Sandy Bridge (and previous processor generations, so it runs at the same speed on different OSs (the OS does not matter), if you use the same settings and the same input file.

    I've the same problem as you, but with MeGUI (VMware Fusion v3.1.3, Win XP SP3), which uses x264 for H.264 encoding. I've tested similar x264 settings in HandBrake for Mac OS X (uses also x264) and MeGUI for Windows XP, and i've not noticed big differences in the encoding speed.

    I use MeGUI, because it supports a lot of AviSynth filters, like TDeint and FFT3DGPU, and supports more x264 settings.

    Btw, TMPGENC uses also the x264 library. I use MeGUI via VMware on this MBP.
  3. Quad5Ny macrumors 6502a


    Sep 13, 2009
    New York, USA
    Your better off running it natively by booting directly to Windows.

    A VM will always be a bit slower.
  4. genea thread starter macrumors newbie

    Aug 1, 2011
    Thanks guys. I guess I will install bootcamp along with parallel and do some benchmarking. It there is no big difference. I will stick parallel.
  5. genea thread starter macrumors newbie

    Aug 1, 2011
    well I finally got around to test the difference to encode the same video file to H.264:

    system: Imac Core i7 3.4 ghz
    Ram: 16GB
    Drive 1: 255 GB SSD
    Drive 2: 2 TB SATA

    Machine and Operating conditon: brand new

    Bootcamp: 12 minutes

    Parallel: 62 minutes (dedicated 8GB ram and 8 core to parallel)

    So unless there is setting in parallel I am missing the difference in encoding time is enormous.

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