What is a GPU and how does it work? – Gary explains

Read the full article: http://goo.gl/n6uDIz

For many people GPUs are shrouded in mystery. You might know they have something to do with 3D gaming, but beyond that maybe you don’t really understand what is going on. So let’s take a peek and see what is behind the curtain.

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49 thoughts on “What is a GPU and how does it work? – Gary explains

  1. Lord Jesus died for our sins on the cross and rose from the dead on the third day. If we repent and believe + trust in Lord Jesus, we will be saved, from hell and lake of fire, to everlasting LIFE.

  2. Just got hammered because, in my video covering shaders (a really dumbed down version), I say that the pixel/fragment shader runs once for each pixel (I was trying to keep it simple). Now seeing this video, I feel better as you did exactly the same 🙂
    I guess great minds think alike 🙂 Nice video!

  3. Wow this is awesome. Recently I got interested in building my own PC. So naturally I got interested in what each individual part does. It's really fascinating how they all work to create an artificial world. Really good explanation, even though I didn't understand everything 100%

  4. we need more of these type of videos on how gary explains how all different parts of a smartphone works together for us to be able to game, mail, fb ,whatsapp, etc

  5. I love shaders in OpenGL. They are such a powerful tool that are often neglected for some tasks where they just blow away anything that can be done on CPU. Image processing, etc. For example I tried making a 3D scanning app on Android. In Java it was too slow to be practical. In C++ it was somwhat ok but still only 1 frame per second to build a 3D point cloud. Moving pretty much the same code from C++ to GLSL shaders results in an insane speedup sometimes, without much change required since GLSL is so close to C, it is almost just copy and paste.

    In one instance, the same code that was 19 seconds per frame on a powerful Desktop CPU runs at 30+FPS on a mobile GPU. Just cuts through those calculations like it is nothing. I've been fascinated ever since on what can be done with shaders.

  6. I’m done listening to this guy. Yes. You know lots of stuff. We get it. But there is a difference between telling us what you know, and teaching. Next.

  7. Thanks for the video and all but I'm tech fried. Will this external GPU will render my video?

    I have video pad editor (basically like Sony Vegas but I think better hehe) the program basically saying it's too much stuff going on for it to be rendered in real time. I really need to know if this helps with that 🙂

  8. the comparison of nvidia to qualcom in efficiency is retarded, if you can name a qualcom gpu that is 815mm sq die and does 15tf fp32, 7.5tf fp64 and does it while using less than 250 watts then please tell me

  9. how does the GPU get instruction. is it hex code that goes or is it zero and 1's like binary code. i mean would it be posibelt to take a nvidia graphics card to make it calculate something just by letting it get commands from a IC chip

  10. Man u r so religious abt Android….but minus that loyalty, ur videos r awesome! Keep it up, perhaps without the loyalty preaching…

  11. Is it safe to say that a gpu is like a mini computer? It's got ram, a cpu… I dk.. that helps me to think about it.

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  13. Ce que je retiens ,
    De mes leçons d' histoires ,
    C'était que la guépéOU?
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    LES PRÔBLÊMES
    FÂMILIAUX ÊTAIENTT REGLES au SEIN DE LA FAMILLE ????
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  14. uh… i am quite new in this era
    but can a good processor ensure us great performance
    and can i make games and make my videos much better
    is gpu required for vr gear

  15. Thank you Gary Sims, I understand, what CPU is, What I discovered is that it's using different ways of using graphics and colors, of games etc.

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