iMac 3.4 or 3.5 Ghz2018-11-07T09:31:51+02:00

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iMac 3.4 or 3.5 Ghz

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  • Helenus Kruger
    Participant
    Post count: 202

    Advice please.

    I work with LR Classic and do basic video editing. I will start playing around with Premier Pro / Final Cut, for personal use.

    Is there a big difference between the 3.4 and 3.5Ghz (both 8Gb RAM, i5)? Price wise the 3.4 plus upgrade to 16Gb is a little cheaper than the 3.5 with 8Gb. If I have to choose, which is more important: .5 increase in processor or upgrade smaller one to 16Gb?

    I cannot afford the 3.8 i7.

    I also  do not understand CPU vs GPU.

  • JohanD
    Participant
    Post count: 3

    Hello Helenus

    When using a computer for media such as photo and video editing, the amount of RAM in the computer makes a big difference. That is the amount of fast accessible memory in which files are stored for immediate access as you are working on them. When the RAM is small, the computer has to often clean up for more working space and this has a speed impact. When talking about CPU clock speed, the difference between 3.4 and 3.5 GHz is really insignificant when they are the same model of CPU (Intel i5 in this case). The one may have slightly larger cache memory or something like that, but I do not believe the impact will be nearly as significant as a 100% increase in RAM.

    I would therefore recommend that you rather get the 3.4 GHz with a 16 GB RAM upgrade.

    The difference between CPU and GPU is this:  CPU stands for Central Processing Unit and it is this chip that runs the system and controls all aspects of computation in a general way. GPU stands for Graphics Processing Unit and its job is to render the output shown on your screen, frame by frame. It is incredibly sophisticated in dealing with lots and lots and lots of complex math calculations (Billions per second). Usually, this is associated with gaming and a faster GPU with a lot of memory will render more detailed, smoother imagery in a 3D computer game. But, operating systems has become more sophisticated and most software these days make use of the GPU’s incredible and specialised mathematics engine to assist in rendering math-intensive things like video etc. So, in your case, in addition to the CPU and RAM, a good GPU would have a positive impact on performance while using Premiere Pro or Final Cut.

    I hope this explains a few things 🙂

    • This reply was modified 5 months, 1 week ago by  JohanD.
  • Helenus Kruger
    Participant
    Post count: 202

    Hi Johan. Wow, thanks a lots, what a great explenation and advice!

  • JohanD
    Participant
    Post count: 3

    You are welcome.

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