Discussion in 'Mac Pro' started by Spies, Feb 27, 2006.

  1. Spies macrumors regular

    Feb 21, 2006
    United Kingdom
    What is the video encoding performance like on Intel Duo's under OSX?

    Under windows I would benchmark using virtualdub but no idea what to suggest on OSX, can anyone provide some figures?
  2. Merom MacBook macrumors newbie

    Jan 11, 2006
    I am currently encoding my Seinfeld DVDs to an iPod compatible but still nice resolution so I have smaller files to be available in Front Row all the time. I have it set to 544x416 with Deinterlace unchecked. This is a 2 GHz with 2 GB RAM and 256 VRAM. I rip them to the HD, then batch encode. Here we are with 100 fps average. The average can fluctuate between 65 and 105, but most often I see it about 90.

    Attached Files:

  3. Chundles macrumors G4


    Jul 4, 2005
    Mother of god.....:eek:

    I gotta get me one of them new fangled iMacs. My iBook is doing well at 18fps...
  4. Spies thread starter macrumors regular

    Feb 21, 2006
    United Kingdom
    I see you mention VRAM, is that significant because I didn't think encoders could utilise the GPU for processing?

    Do you have any other machines for reference to compare?
  5. Chundles macrumors G4


    Jul 4, 2005
    He's just giving you the specs of the Mac so you can get the full picture. I saw the 17" iMac at the AppleCentre encoding a video in Handbrake at around 50fps - didn't have a look at the settings but that's 2.5x faster then my iBook can do it and the 20" example above is over 5x faster.

    Depending on the encoding (I've found I get much faster results at 320x240 than at 576xwhatever) settings you could really make that iMac hum. Ripping a DVD episode in what? 8, 10 minutes? Would be sweet!!
  6. BornAgainMac macrumors 603


    Feb 4, 2004
    Florida Resident
    The encoding speeds convinced me to get a MBP with this rev rather than waiting for next year. I am also looking forward to hooking up my 30 inch display and trying a few games. My Powermac G5 will be disconnected from the monitor and I'll remotely login using my MBP. It will be dedicated to doing the boring encoding with Handbrake during the day. Both the MPB and Powermac will be encoding while I sleep.
  7. powerbook911 macrumors 68040


    Mar 15, 2005
    I encode 640x in handbrake into H264, and it gets about 19FPS. Very nice, for H264 at that high resolution. I just have it work at night, when I sleep, and it is all done in the morning. :)
  8. MacHarne macrumors 6502

    Mar 3, 2005
    Virginia, U.S.A.
    It's way too early in the morning for me to be having heart palpitations with only one cup of coffee in my stomach. Those numbers nearly sent me to the emergency room.

    My PowerBook gets about 19 fps average on highest processor mode. However, on one occasion, I had a fan blow underneath my PowerBook (sitting on an iCurve) during the night while it encoded two DVDs to very high quality mp4s, and in the morning I saw that the average fps was 29.9x. I had a hard time believing it.

    Thanks for those HandBrake numbers, Merom MacBook. And thank you HandBrake for being a Universal Binary.
  9. adk macrumors 68000


    Nov 11, 2005
    Stuck in the middle with you
    Holy Speed Batman!!

    My 1.67 powerbook is embarrassingly slow compared to that. So very jealous! Also, does ripping the DVD onto the harddrive first make a noticeable difference? I would think that the time saved by encoding from the hard drive would be less than the time spent ripping the DVD.
  10. CubeHacker macrumors 65816


    Apr 22, 2003
    Just a small tip - if you're encoding to MPEG4 (like you are in that picture), you should do 2 things:

    1.) Use Xvid as the encoder, NOT ffmpeg. The quality of ffmpeg is poor compared to Xvid.

    2.) Use AVI as the container format, not MP4. Handbrake currently has a bug where MP4's encode darker than they should be. AVI is the correct brightness. Its also just more compatible with everything out there.

    Also I wanted to note that I attempted to encode into H264, and I didn't notice any vast difference between it and MPEG4 using the same bitrate. As H264 encodes noticibly slower, I don't see the point of using it.
  11. Texas04 macrumors 6502a


    Jul 2, 2005
    True but if hes encoding to the ipod it has to be on certain settings, search the threads for the setup... but I know it has to be at a certain amount.

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