Computer Geeks Dept.: CPU vs. GPU

By Monday March 7, 2011

Yes, I know this is two years old but I hadn’t seen it.

Found by Cinàedh.



7 Comments
  1. Dallas says:
    3/7/2011 at 10:51 am

    I agree GPU’s are messy to program and impractical for most computational tasks. They are nothing more than a DSP for graphics.

    The logical approach is a general purpose CPU with acceleration hardware..like a graphics or DSP chip to do repetitive functions like pixel processing.

    Nvidia is a graphics company. What else are they gonna say?

  2. bobbo, not a computer guy says:
    3/7/2011 at 11:02 am

    I don’t think that demonstration while interesting says anything about how a gpu works. To me it was just many cpu actions let go at the same time. Pipelines, steams, cycles, whatever?, I don’t know how to fit this analogy into a more didactic reality.

    course now, I’ll go google something less exciting but more informative. Got to be more than “optimized for video” going on?

  3. hhopper says:
    3/7/2011 at 11:14 am

    I’d say it’s more of a Serial vs. Parallel demo.

  4. ECA says:
    3/7/2011 at 1:48 pm

    HH,
    you have part of the problem..

    ALL graphics first have to be computer by the CPU, then sent to the GPU.

    ALL the GPU does at this time is RENDER after the CPU converts the data.

    You cant throw JPG/BMP/AVI/MPG/…/…/… to the GPU, and have it do anything.

    If you could take the GRAPHICS processing away from the CPU, you would gain 4-10 times the speed on the CPU. TAKE the desktop processing AWAY from the CPU..moving your MOUSE shouldnt take CPU POWER.(it does).
    LET the Video card RENDER and display the desktop and the CPU send the instructions, on what to DO TO IT.. but this takes EPROM MEMORY.. and windows would send PARAMETERS of what is where and pictures displayed..the VIDEO card would gather the picture and display it..
    (GOD, I miss my Amiga)

  5. joaoPT says:
    3/8/2011 at 8:42 am

    You could do this, and spend a couple thousand dollars in the demo…
    or you could show a Pencil and a Stamp at action… same analogy…

    I guess Mythbusters would be paid considerably less with the latter option…

  6. JoaoPT says:
    3/8/2011 at 11:28 am

    You could do this, and spend a couple thousand dollars in the demo…or you could show a Pencil and a Stamp at action… same analogy…

    I guess Mythbusters would be paid considerably less with the latter option…

  7. ECA says:
    3/9/2011 at 8:44 am

    WOW,
    no comments from the UN-GEEKS??


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