Handbrake on 2013 i7 iMac - Avg. Time to Convert?

Discussion in 'Apple TV and Home Theater' started by kbutler84, Nov 18, 2013.

  1. kbutler84 macrumors regular

    Jun 26, 2011
    About to pull the trigger on a new iMac. Coming from a Core 2 Duo, I know I'm going to be thrilled with the speed, but just curious as to what the average time to convert a Bluray (MKV) using handbrake on a 2013 i7 iMac is?
  2. Old Muley macrumors 6502a

    Old Muley

    Jan 6, 2009
    Titletown USA
    I've never ripped a blu-ray disc, but regular DVD's rip quite quickly. I can't give you an average time, but I can say it probably takes less than quarter of the time on my i7 than it did on my Core 2 Duo machine.
  3. paulrbeers macrumors 68040

    Dec 17, 2009
    Impossible to truly say. No disk is the same, you could have some custom settings, how many passes to encode, etc. etc. etc.... With that said, it should be anywhere from 2x-4x faster.
  4. mpainesyd macrumors 6502


    Nov 29, 2008
    Sydney, Australia
    EyeTV (digital TV) conversions are much faster - from editing the video (deleting ads etc) to using Handbrake to create the MP4 file. My guess is about 4 to 5 times faster.
  5. JoeBlow74 macrumors regular

    Aug 2, 2012
    I have a mid-2011 iMac with the Intel I5 quad core processor. It takes me about 15-30 minutes to transcode a standard def DVD. I would suggest getting a full speed external disk drive and the SSD. I have an SSD in my hackentosh and it is smoking fast.

    I have a friend who has an I7 based hackentosh with SSD and he can transcode a DVD in less than 10 minutes. :eek:

    To answer your question, I have no idea. All the new iMacs have everything build onto one board. They are also extremely low power and energy efficient.
  6. Pyromonkey83 macrumors 6502

    May 24, 2009
    Definitely go with the Fusion drive if you can afford it, wont help your handbrake speeds but everything else is lightning quick as a result. As always, this is completely dependant on your settings, what you are converting, and how intensive the feature is. Generally, however, a 1080p rip from a blu ray including rip and convert will take between 10-16 hours total.

    This includes conversion of DTS -> AAC(2ch)+AC3(6ch), and converting with multiple advanced x.264 settings.

    Previously on my old core 2 Quad windows machine, the same conversion would take about 26-30 hours.
  7. kbutler84 thread starter macrumors regular

    Jun 26, 2011
    Strange, it typically takes 10-15 hours to transcode a 1080p rip currently on my Core 2 Duo iMac using AppleTv3 preset. I would certainly hope a 2013 i7 iMac would be significantly faster (also I plan on going full SSD). What kind of setup are you using and what kind of advanced settings are you using that would cause your transcode times to be so long compared to what I'm getting on my old machine?
  8. priitv8 macrumors 68040

    Jan 13, 2011
    Never had a iMac but my previous C2D MBP took the same 10-15h to convert full-size BDrip. Current QC i7 does the same in real time (ie around 24fps for 1080p = 2h movie in 2 hours). For 720p the speed is double of that.
  9. kbutler84 thread starter macrumors regular

    Jun 26, 2011
    Nice, good to hear.
  10. Pyromonkey83 macrumors 6502

    May 24, 2009
    I focus more on quality than the standard ATV3 preset. If I use that preset a 1080p rip was estimated at 4.5 hours before I shut it off (specifically was converting White House Down to test). My preset uses Constant Quality RF16, DTS -> AAC 2ch + AC3 6ch, possible hardcode of PGS subtitles for foreign tracks, and the following x.264 advanced string:

    Also, I have Anamorphic set to Strict, and generally leave it to automatic cropping. Decomb and Detelecine are set to Default which adds significantly to the time required compared to the ATV3 preset.

    I'm a quality nut over speed, I'm sure I could turn off Decomb/Detelecine and notice literally zero difference, and even up the RF setting, but I prefer having a high quality film for future use (never know when I might spring for that 4KTV, and maybe the extra 6-8 hours per video will be worth it!).
  11. blanka macrumors 68000

    Jul 30, 2012
    Just don't convert. It's useless. I get BR Rips directly into great working MKV's, and often they are only 10-15GB, so I don't feel any problem with the size. I only strip the useless audio channels (I keep DTSMA only) and add the right SRT subtitle track to have more freedom in the placement of the text in the black bars.
  12. priitv8 macrumors 68040

    Jan 13, 2011
    Do you decomb/detelecine also for BD rips?
  13. lunaoso macrumors 65816


    Sep 22, 2012
    Boston, MA
    I have a stock 3.4 GHz i5 in my hackintosh that I use to rip Blu rays and DVDs. I use the stock Apple TV 3 preset, no changes. Oh and all from mkv files.

    2 hr Blu Ray: 2hr-2.5hr
    2hr DVD: 10-20min

    So expect at least that if not better.
  14. Pyromonkey83 macrumors 6502

    May 24, 2009
    I leave them on since they are situational. Handbrake will determine whether or not each one is necessary before following through with it. This way I can have one setting for both my BD rips as well as when I use my camcorder which is 1080i. Generally, however, they will do absolutely nothing when enabled.
  15. Scarpad macrumors 68000


    Jan 13, 2005
    I also have a Mid 2011 I5 Imac and I rip the blu's to MKV with Make MKV and then encode using the Apple TV 3 preset to mp4 and I would say it's roughly between 2.5 to 3.5 hrs to convert a blu to 1080p, if you drop the res down to 720 knock an Hour off that.
  16. rayward macrumors 68000

    Mar 13, 2007
    Houston, TX
    My i7 iMac (late 2011, I think) will process a BD rip in 3-4 hours, using the Apple TV preset, depending on the length / complexity of the movie.
  17. Mac Hammer Fan macrumors 6502a

    Mac Hammer Fan

    Jul 13, 2004
    According to a test that I have read somewhere on the internet, Handbrake is slower on the Imac 2013 than on the Imac 2012. Can someone confirm this?
  18. packgrad2000 macrumors regular

    Sep 19, 2007
    My mid 2012 rMBP (2.3Ghz) using the standard ATV3 preset will do a 2 hour Bluray MKV in about 2 hours and the same standard DVD in about 15 minutes. Pretty similar to what @lunaoso is getting.
  19. kbutler84 thread starter macrumors regular

    Jun 26, 2011
    Just updated my own thread with my findings:

    With my 2013 3.5 i7, I'm seeing approx. 1.5 hours for converting a 2 hour BD rip.
  20. martinm0 macrumors 6502a

    Feb 27, 2010
    You should use this thread and add your results. I've been compiling Handbrake encode times on as many machines as I can get my hands on. FPS is important to know as well as total time.

  21. jlusk99 macrumors member

    Apr 17, 2013
    Wow, I must be doing something wrong in Handbrake. Using a 2012 Ivy Bridge MB classic, it took about 45 min with MakeMKV to rip from an external Bluray drive for the movie Castaway. Using the AppleTV 3 preset after an hour and a half I'm only 18% done with an estimated 8 hours remaining.

    Anything I should look for that I might be doing wrong that is causing mine to take so long?
  22. johnmerrill macrumors newbie

    Jan 26, 2014
  23. martinm0 macrumors 6502a

    Feb 27, 2010
    Without a quad core i7 processor video encodes will take quite a while, so I think what you are seeing is accurate. Ripping the movie from the disc with MKV doesn't utilize any of the computer's raw power, so that 45 mins will be the same for you as it is for me.

    On my 2012 iMac 3.4 i7 quad core, I can convert a movie just a little faster than real time (so, a 90 min movie takes around 85 mins to encode on my machine). Keep in mind that's faster clock speeds and more cores all working together over your maybe 2.3 dual core CPU (just guessing).
  24. VideoBeagle macrumors 6502a

    Aug 17, 2010
    App Q&A testing by request.
    That's about what I see on my 2012 i7
  25. andymodem macrumors 6502a

    Nov 20, 2008
    Baltimore, MD
    About 10-12 hours on my quad core i7 Mac Mini. But I move CQ to 22, and crank video options up to very slow.

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