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

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  • เผยแพร่เมื่อ 8 ก.พ. 2025

ความคิดเห็น • 287

  • @samueltan2148
    @samueltan2148 8 ปีที่แล้ว +32

    I finally understand the purpose of learning Vector and Matrix in Maths at school Lol

    • @santiagochris9022
      @santiagochris9022 3 ปีที่แล้ว

      Instablaster.

    • @harshitkumar4760
      @harshitkumar4760 3 ปีที่แล้ว

      Well there are so many things other than computing world where they are used. Actually they are used in every field at the higher level. Yes every possible field.

  • @medilyesoudhini7411
    @medilyesoudhini7411 8 ปีที่แล้ว +117

    "well...let me explain"..aghh i love that line

    • @overpoweredgamer9227
      @overpoweredgamer9227 8 ปีที่แล้ว +3

      Expailn? I thought he said Explain* XD

    • @medilyesoudhini7411
      @medilyesoudhini7411 8 ปีที่แล้ว +1

      +overpowered gamer damn it --" well leave it like that I won't correct it XD

    • @xrafter
      @xrafter 4 ปีที่แล้ว

      @@medilyesoudhini7411
      Please no correct it please:(
      Priss the :

    • @iconict2365
      @iconict2365 4 ปีที่แล้ว

      Med Ilyes Oudhini it’s been 4 years and you didn’t correct it

    • @medilyesoudhini7411
      @medilyesoudhini7411 4 ปีที่แล้ว

      @@iconict2365 I was so childish back then 😂 it's corrected now

  • @angelotakigami5154
    @angelotakigami5154 7 ปีที่แล้ว +11

    Gary, your explanations are always great. Congratulations!

  • @atngaming2019
    @atngaming2019 4 ปีที่แล้ว +1

    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

  • @imraneo
    @imraneo 8 ปีที่แล้ว +4

    Excellent video Gary. A good break from the other product reviews. Hope to see more of such videos!

  • @jtomislav
    @jtomislav 8 ปีที่แล้ว +25

    Congratulations on 2mil subs guys!

  • @jasonk7675
    @jasonk7675 8 ปีที่แล้ว +50

    Nice video, but I lost you half way there. lol

  • @GameDevAcademy
    @GameDevAcademy 8 ปีที่แล้ว +75

    Vertexes??? Come on Gary! I spend half of each year teaching my students that the plural for vertex is vertices. This video is great and I want to use it in my teaching but you're killing me with this vertexes business!!!

    • @Nomad524
      @Nomad524 8 ปีที่แล้ว +19

      Says here either form is acceptable www.dictionary.com/browse/vertex

    • @GameDevAcademy
      @GameDevAcademy 8 ปีที่แล้ว +16

      +Miller Kavanagh The only thing worse than someone telling you you're wrong is them supporting their argument with an authoritative source. Well, on the plus side I can now get my students to use the video :)

    • @matrix-path-of-neo
      @matrix-path-of-neo 7 ปีที่แล้ว

      in spanish is vertices if it makes you feel better ....

    • @mrwho2513
      @mrwho2513 6 ปีที่แล้ว +2

      grammar it's not an exact science, in order to know the real truth you should ask the person who invented this word. There might be no logical conclusion otherwise

    • @SuperMasakado
      @SuperMasakado 6 ปีที่แล้ว +1

      @@mrwho2513 probably the best comment I've ever found on youtube!

  • @lh6355
    @lh6355 6 ปีที่แล้ว +2

    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.

  • @jebalimazen1809
    @jebalimazen1809 5 ปีที่แล้ว +3

    Great video Gary thx for your deep explaining!

  • @rutuparna
    @rutuparna 8 ปีที่แล้ว +3

    What an amazing video! I'm a postgraduate in Computer Science and I had done this in Computational Graphics but you just cleared my concepts amazingly Gary. You rock.

  • @rednafi
    @rednafi 8 ปีที่แล้ว +4

    the intonation of gary's voice is .......I am heading over to the written article.Thanks a lot for breaking it down to lay people.

  • @gc.s
    @gc.s 8 ปีที่แล้ว +1

    Congratulations on 2.000.000 Subscribers! :D

  • @deez6005
    @deez6005 7 ปีที่แล้ว +4

    This was a well put together video. Love your channel. Wish there was a similar channel based on iOS

  • @thomaslehner7430
    @thomaslehner7430 8 ปีที่แล้ว +2

    This is a professional and informative video that gives broad insight into the topic in a very short time. Thank you for great content.

  • @parthvsquare7762
    @parthvsquare7762 8 ปีที่แล้ว +1

    First of all congrats on 2m sub
    And my question is that what is Xposed
    And what are custom rom and why are the better than the stock
    Please explain in the next vedio

  • @RiteshKudalkar
    @RiteshKudalkar 8 ปีที่แล้ว +3

    Gary definitely has those amazing explainatory skills! I'd love to see more such type of videos

  • @liz_3d
    @liz_3d 8 ปีที่แล้ว +8

    Great video guys !

  • @christianstefaniw585
    @christianstefaniw585 7 ปีที่แล้ว +21

    how does the gpu output images to the display?

    • @Blo0dyAss
      @Blo0dyAss 6 ปีที่แล้ว +2

      Still a mystery

    • @DaFinkingOrk
      @DaFinkingOrk 6 ปีที่แล้ว +9

      Rasterisation I think. (Disclaimer: I'm no expert!!!!! Could all be wrong!) Not sure if rasterisation is the right word though. But this is what happens.
      Basically rasterisation is turning the 3d scene into a 2d picture.
      Very very roughly and basically what happens is it looks at the scene it has created in its memory and takes a picture of it through a virtual camera - which is the screen - then it is sent to the screen.
      That's all after the GPU has created the 3d scene in its memory. Which it does by creating the polygons/triangles in the memory and then repeatedly editing the memory to add things like textures, lighting, particle effects, reflections/shadows etc. Then the next scene is made by editing the previous one - transforming, re-scaling, rotating etc the verticies like he says in the video - then calculating the lighting and shadows etc again. All that is why the amount of memory and *especially* the speed of the memory matters a lot.
      When each frame is complete, it is rasterised (or whatever the word is) like I tried to describe above. A "picture" is taken from the viewpoint of the screen, various processing is applied to make it look better and more natural (like AA/anti-aliasing) and it is sent to the output - the screen.

    • @tendenzafashion
      @tendenzafashion 5 ปีที่แล้ว +3

      @@DaFinkingOrk expert

    • @joshuagollaher9614
      @joshuagollaher9614 4 ปีที่แล้ว +2

      RedButtonProductions The 3d scene is mapped to a 2d scene using transformation matrices, then is rasterized and sent to the monitor.

    • @jurajbeno2046
      @jurajbeno2046 4 ปีที่แล้ว

      @@DaFinkingOrk wow this is what i came for thanks

  • @learnwithalvin7327
    @learnwithalvin7327 3 ปีที่แล้ว +1

    just liked and subscribed. wish i could do more. i really appreciate the explanation. these are just the details i needed. thank you

  • @DarkoSupe
    @DarkoSupe 4 ปีที่แล้ว

    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!

  • @DaNumba23
    @DaNumba23 8 ปีที่แล้ว +2

    mannn I did a paper on this almost a month ago. Wish you guys did this video sooner 😭

  • @marcusalexio1834
    @marcusalexio1834 4 ปีที่แล้ว +4

    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%

  • @Singh_Preet57
    @Singh_Preet57 8 ปีที่แล้ว +1

    Thanks Garry for providing us with the precious information.

  • @JamesRussoMillas
    @JamesRussoMillas 8 ปีที่แล้ว

    I was litterally just thinking about this the other day. So glad Gary uploaded it :)

  • @handsomehorsetech
    @handsomehorsetech 8 ปีที่แล้ว +1

    definitely would like this series and thanks a lot!

  • @aakashr2101
    @aakashr2101 8 ปีที่แล้ว +83

    You have made it MORE complicated for some people sir.,

    • @AnarchoTak
      @AnarchoTak 4 ปีที่แล้ว +1

      69 likes noiice

    • @gurneetsingh7952
      @gurneetsingh7952 4 ปีที่แล้ว +3

      It's been four years, is it still complicated for you?

    • @jtk6402
      @jtk6402 4 ปีที่แล้ว

      @@gurneetsingh7952 😂😂😂😂

  • @veroniquepeeters5232
    @veroniquepeeters5232 8 ปีที่แล้ว +1

    Gary is making me smarter with his video's. good video again.

  • @mewantedbyme1
    @mewantedbyme1 7 ปีที่แล้ว +1

    awesome video Gary!!

  • @namanmehta2807
    @namanmehta2807 8 ปีที่แล้ว +1

    thanks for the video...can u plz make a video on how one can create their own android custom rom...plz..

  • @kkoesoemo
    @kkoesoemo 8 ปีที่แล้ว +1

    Wow, this episode looks like a Techy thingy online class, love it so much ;) Thanks for the deep explanation btw

  • @llennoco
    @llennoco 8 ปีที่แล้ว

    Each face isn't necessarily a triangle of vertices. Triangles are used to reduce the vertex count but quads offers much better deformation for animation.

  • @kendokaaa
    @kendokaaa 8 ปีที่แล้ว +1

    As always, very informative

  • @Andre-xu9st
    @Andre-xu9st 8 ปีที่แล้ว +2

    Thanks Gary!

  • @jagannathbelel
    @jagannathbelel 8 ปีที่แล้ว +1

    your explanation is the best
    love it

  • @ashishsharma8383
    @ashishsharma8383 8 ปีที่แล้ว

    i wish i had a teacher like Gary Sims..... your explanations are so understandable... and also i dog the accent.

  • @grindallion3866
    @grindallion3866 6 ปีที่แล้ว +1

    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

  • @NikC0b2
    @NikC0b2 8 ปีที่แล้ว +1

    Great explanation !!

  • @dcarrasco2680
    @dcarrasco2680 8 ปีที่แล้ว

    Congratulations on 2 million guys

  • @Medieval3d3d
    @Medieval3d3d 6 ปีที่แล้ว +1

    Thank you Gary, finally someone explained me that, seriously I always wanted to know :)

  • @psychoticguardianismael3967
    @psychoticguardianismael3967 8 ปีที่แล้ว +1

    thanks for the explanation.

  • @luca5303
    @luca5303 7 ปีที่แล้ว +1

    What does "force GPU rendering" do in the developer options

  • @TheONEHD1762
    @TheONEHD1762 8 ปีที่แล้ว +1

    thanks a lot. a very good explaination

  • @emrekonak3114
    @emrekonak3114 8 ปีที่แล้ว +1

    Thnx for The information

  • @Russeljrjs
    @Russeljrjs 8 ปีที่แล้ว +1

    How about the Nvidia Tegra X1?

  • @gianmarcopane2806
    @gianmarcopane2806 4 ปีที่แล้ว +1

    Great explanation, thanks a lot :D

  • @mattizzle81
    @mattizzle81 5 ปีที่แล้ว

    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.

  • @devmishra4700
    @devmishra4700 8 ปีที่แล้ว +1

    I love your videos. always a thumbs up!

  • @mohdasim7859
    @mohdasim7859 8 ปีที่แล้ว +1

    thanks Gary for explaining this 😁

  • @killertruth186
    @killertruth186 8 ปีที่แล้ว +2

    congrats on 2 million subs.

  • @sjesudasan
    @sjesudasan 8 ปีที่แล้ว

    Hi Gary, Great video as always. can you please clarify my doubt, once android N is released to older devices running multiple cores, will the graphics performance improve on supported games and benchmarks?

    • @vanyaa104
      @vanyaa104 8 ปีที่แล้ว

      yes it will, vulcan api will help

  • @mskumar999
    @mskumar999 7 ปีที่แล้ว

    Awesome clarity !

  • @xoqes
    @xoqes 8 ปีที่แล้ว

    Gary is the reason why I am still a AA subscriber. Gary and Jayce, the rest of the team are pretty much good video makers with a clear lack of enough knowldege to be hosting a tech channel. But then again, most of the most subscribed youtube tech channels are like this: good video making, almost zero quality content.

  • @naorzamir6346
    @naorzamir6346 4 ปีที่แล้ว

    Great explanation,
    Thanks!

  • @radtech246
    @radtech246 8 ปีที่แล้ว

    Gary videos >>>

  • @monkeith5705
    @monkeith5705 7 ปีที่แล้ว

    I'm still confuse about the parallel thing in GPU. I have read a journal saying that sphere and cylinder have high computational parallelism. How will you know if a figure is parallel enough for GPU?

  • @mdjaberhossain7387
    @mdjaberhossain7387 4 ปีที่แล้ว

    Thanks a lot sir.This video is so helpful

  • @coooldudedar1994
    @coooldudedar1994 8 ปีที่แล้ว +1

    Thank you AA for making videos like these.....definitly very helpful!!!!!
    Do keep making more of these!!!

  • @SyangjaliThitoMagar
    @SyangjaliThitoMagar 6 ปีที่แล้ว

    nicely explained

  • @Unreelness
    @Unreelness 8 ปีที่แล้ว

    love your videos Gary.

  • @riteshgarg
    @riteshgarg 8 ปีที่แล้ว +1

    Gary always rocks :)

  • @baltazar0007
    @baltazar0007 5 ปีที่แล้ว

    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

  • @nilsluppertz5516
    @nilsluppertz5516 5 ปีที่แล้ว

    Thanks for the helpfull Video

  • @botakleong788
    @botakleong788 8 ปีที่แล้ว

    tq Gary for the explanation, appreciate it! keep it up

  • @futtspoppin6348
    @futtspoppin6348 4 ปีที่แล้ว

    Now I’ll go see if there’s a video that explains this explanation

  • @awaisahmed9418
    @awaisahmed9418 8 ปีที่แล้ว

    Great stuff Gary

  • @shubhamraturi3348
    @shubhamraturi3348 8 ปีที่แล้ว

    Hi Gary , I have only one problem that you never reviewed a Micormax smartphone? why ???????????

  • @KantoKairyu
    @KantoKairyu 5 ปีที่แล้ว +2

    Wait wait wait, you're telling me it's *not* a home for a kindly elf who eats polygons???

  • @hetherdane9479
    @hetherdane9479 5 ปีที่แล้ว

    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 :)

  • @hanan1933
    @hanan1933 8 ปีที่แล้ว

    great video #GARY please do indepth cpu & gpu

  • @tendenzafashion
    @tendenzafashion 5 ปีที่แล้ว +3

    after watching 3 times i understood;thx

  • @hemantsamal
    @hemantsamal 2 ปีที่แล้ว

    well explained..

  • @BMWROYAL
    @BMWROYAL 8 ปีที่แล้ว

    So my math teacher couldn't explain why we need geometry but you did, what a world we live in

  • @ronny1990
    @ronny1990 8 ปีที่แล้ว +2

    If only my engineering professors were such good at teaching.!

  • @TonyCorin
    @TonyCorin 8 ปีที่แล้ว +7

    I'd love a 2 GPU's in my car.

  • @karanchawla8954
    @karanchawla8954 8 ปีที่แล้ว

    believe me garry i have learned mostly from you Thanks keep doing it

  • @GoddardEmpire
    @GoddardEmpire 8 ปีที่แล้ว +1

    So wait, the Vulcan thing, what is it? I'm aware of it being an improvement but I didn't really understand if it was hardware or software?

    • @GarySims
      @GarySims 8 ปีที่แล้ว +3

      Software, like OpenGL or DirectX.

    • @GoddardEmpire
      @GoddardEmpire 8 ปีที่แล้ว

      +Gary Sims Thanks!

  • @TOTH_10
    @TOTH_10 8 ปีที่แล้ว

    Gary is the Wendell of Android Authority!

  • @hanan1933
    @hanan1933 8 ปีที่แล้ว +1

    thumbs up #gary, please do indepth cpu & gpu video. (fully explained)

  • @TechStache
    @TechStache 8 ปีที่แล้ว

    Great video! Very complete!
    btw, at 9:15 , that's Unreal Engine, if i'm right.

  • @AbhijitBiswasDBZ
    @AbhijitBiswasDBZ 8 ปีที่แล้ว

    +Gary Sims: can you please explain alu number vs GFLOPS? please

  • @veselindekov2055
    @veselindekov2055 8 ปีที่แล้ว +1

    Gary is the best, I would've loved to see more videos from him!

  • @arandomguynamedlars8943
    @arandomguynamedlars8943 8 ปีที่แล้ว

    Can you also make "a what is a CPU" video?

  • @CarlmeisterWasTaken
    @CarlmeisterWasTaken 8 ปีที่แล้ว

    nice background... must be a GS fan

  • @blutskopp
    @blutskopp 8 ปีที่แล้ว

    Which game is he showing at 6:46? Nice vid BTW!

    • @blutskopp
      @blutskopp 8 ปีที่แล้ว

      Nvm, dumb question, found it in the video

  • @TapanThakur1964
    @TapanThakur1964 3 ปีที่แล้ว +2

    My GPU is bad in maths. He is of my type. #mygpuislikeme

  • @CarlosHernandez-sd9ws
    @CarlosHernandez-sd9ws 8 ปีที่แล้ว

    I just bought a new gaming pc. it has an i7 6700k cpu and a GTX 960 2gb. 2tb. 16gb ram. etc. when i play overwatch its says on the video sertings . intel hd 540 graphics. does this mean my gpu isnt working for some reason?i dont get the frames that i expected from other games too. plz help?

  • @dtb6456
    @dtb6456 8 ปีที่แล้ว +1

    wich is better nexus 6p or Xperia z5 premium?

  • @JP-sn7cd
    @JP-sn7cd 8 ปีที่แล้ว

    Is there a CPU video like this?

  • @pingpong1138
    @pingpong1138 8 ปีที่แล้ว

    I love Gary videos

  • @amirouw
    @amirouw 7 ปีที่แล้ว

    thanx gary

  • @majedaleisa
    @majedaleisa 8 ปีที่แล้ว

    which s7 did you mean sn820?

  • @CyborgSodaCollects
    @CyborgSodaCollects 8 ปีที่แล้ว +6

    Gary for greatest tech guru

  • @narutokunn
    @narutokunn 8 ปีที่แล้ว

    His name is "Gary Sims From Android Authority"!

  • @kory7698
    @kory7698 8 ปีที่แล้ว +1

    Great vid

  • @namanmehta2807
    @namanmehta2807 7 ปีที่แล้ว

    Thanks a lot..... I a big fan and watched each and every video of this series...... Thanks.

  • @ciencieiii2969
    @ciencieiii2969 4 ปีที่แล้ว

    Im more interesed about how gpu use this values to make a picture (comunication to monitor)

    • @xrafter
      @xrafter 4 ปีที่แล้ว

      Heard of window manager?
      It a software program that give every graphics app its own window.

  • @nishanth9843
    @nishanth9843 6 ปีที่แล้ว

    Do a video on API

  • @laskaralam9119
    @laskaralam9119 3 ปีที่แล้ว

    What about VRam?

  • @imranhq13
    @imranhq13 8 ปีที่แล้ว

    which gpu is better mali or adreno? i personally prefer mali