3.06 or 2.8 for creating videos

Discussion in 'Buying Tips and Advice' started by Teacherman, Jul 1, 2008.

  1. Teacherman macrumors newbie

    Joined:
    Jul 1, 2008
    #1
    HI
    I have been following the forum here, and have read a lot of great advice regarding the new iMacs. I am still unsure whether to go with the 2.8 or 3.06 based on my use. I have read the 3.06 is for “gamers” which I am not. I am teacher and use videos that I create in the classroom. I take images, student work (drawings, narration) , and video (news, movie, documentary etc) (off Tivo or Internet), DVDs, and create 2 to 20 minutes videos illustrating an idea such as the Industrial Revolution or Great Depression, tying it to current events. So I cut up various source materials and put all back together again. I use programs like Fotomagico, Imovie, Itunes, Keynote, Garageband etc to integrate the images, videos, questions, ideas.I will then export the videos made for either a DVD , Ipod, or for my class website. I currently have an iMac G5 (2nd gen).

    Since I often use current events i want a quick turnaround, so process / converting videos from DVDs, and then exporting my created “movies” to a playable format quickly would be valuable. Is there a big processing speed gain between the following two configurations. ? Is it worth the $400 to go with 3.06/Nvidia option? Any suggestions. I plan adding RAM to either. Or is it best to just max out the RAM?

    Choice 1
    • 2.8GHz Intel Core 2 Duo
    • 320GB hard drive1
    • ATI Radeon HD 2600 PRO with 256MB memory
    Choice 2
    • 3.06GHz Intel Core 2 Duo
    500 GB hard drive1
    • NVIDIA GeForce 8800 GS w/512MB GDDR3

    thanks for the input.
     
  2. Cave Man macrumors 604

    Cave Man

    #2
    On Macs, video encoding are done by the cpu. There is no leveraging of the gpu. Faster cpu, faster encode times.
     
  3. savvos macrumors regular

    Joined:
    Sep 8, 2007
    #3
    If you want the fastest encoding times with the least cost, you can get the base 24" and upgrade the processor to 3.06 Ghz for $200, that way you aren't spending money on a graphics card you don't need. I also believe the ATI card is faster with pro apps.
     
  4. kabunaru Guest

    Joined:
    Jan 28, 2008
    #4
    Might as well just get the iMac with the ATI card in this case. :)
     
  5. keltorsori macrumors regular

    Joined:
    Jul 24, 2002
    #5
    Go for the better video card. The processor isn't really that important. However, h.264 and mpeg-2 encoders that are optimized for openCL or cuda are on their way to the front. These will make a HUGE difference in encode time, more than any limited processor speed bump.
     
  6. Teacherman thread starter macrumors newbie

    Joined:
    Jul 1, 2008
    #6
    thanks to those who have offered insight to my buying decision, it appears that there is difference of opinion. If I understand the postings, - I will get faster encoding now -from the 3.06GHZ , but in future encoders are being developed that will take advantage of the Nvidia Card vs the ATI card.

    Besides gameplay what advantages does the NVIDIA GeForce 8800 GS w/512MB GDDR3 - offer to people who utilize the ILife and other apps to make videos / presentations, etc? , or to any others users besides gameplayers?

    again, thanks for the advice and others future input, on what would be the best iMac for my stated purposes (cost/benefit)
     

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