MacBook Pro speed comparison.

Discussion in 'Mac Pro' started by Anonymous Freak, Mar 8, 2006.

  1. Anonymous Freak macrumors 601

    Anonymous Freak

    Joined:
    Dec 12, 2002
    Location:
    Cascadia
    #1
    Well, sorry I don't have a whole lot of (recent) computers to compare, but here is one speed comparison...

    I ripped a DVD (48 minute, unprotected) using HandBrake to H.264, 2-pass encoding, de-interlaced. (All other options default, including the wonky 704x400 resolution it picked.)

    It took 55 minutes running HandBrake natively on my 2.0 GHz Core Duo with 2 GB RAM. (average 21.3 fps.) Which means that the 2.16 GHz Core Duo MAY be able to handle it in real time (24 fps,) and the upcoming batch of new processors from Intel (Merom/Conroe) will certainly be able to do it.

    When run in Rosetta... Well... I gave up because the estimate had it taking over 4 hours. But after 45 minutes, it had averaged only 4.5 fps. (Which is on pace for 4 hours, 15 minutes.)

    On my 1.25 GHz G4 eMac with 768 MB RAM, it took 4 hours, 25 minutes, averaging 4.4 fps. Yes, that means a 2.0 GHz Core Duo running through Rosetta is faster than my 1.25 GHz G4 running natively at H.264 encoding.
     
  2. mrgreen4242 macrumors 601

    mrgreen4242

    Joined:
    Feb 10, 2004
    #2
    Thanks for posting this, it was interesting. I wonder if Handbrake was coded to take advantage of AltiVec, when present?
     
  3. Anonymous Freak thread starter macrumors 601

    Anonymous Freak

    Joined:
    Dec 12, 2002
    Location:
    Cascadia
    #3
    Good question. I would imagine so, but since the shipping version of Roesetta does support AitiVec, (I assume that's where you were going,) it isn't that easy to test.

    Aha! I just realized that I have a 600MHz iMac G3, and a 500 MHz Blue and White G4 (upgraded from stock 300 MHz G3.) Unfortunately, the iMac doesn't have a DVD drive, but I do have an external one...

    I can run a test on those two. If the 100MHz slower G4 is faster at encoding than the G3, then it is AltiVec enhanced. (I'll have to run that test tomorrow, though.)
     

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