How GPU works?

[JuztBe]

So how does GPU work. I heard something like that: GPU read CPU instructions and if it says shows a tree it shows a tree.
Is it correct? 

[Guest]

Its much more complicated than that

 

by much I mean much much much much

[IvIast3r]

black magic

[JuztBe]

Its much more complicated than that

 

by much I mean much much much much

. I'm preparing presentation for English class, so I need only basic idea, so every one could undrestand. 

[Najuno]

Here´s the link, if you´re not shy to read you´ll know . That should answer your question in detail.

 

http://en.wikipedia.org/wiki/Graphics_processing_unit

[SirRoderick]

Well it's the device that renders all of the images on your screen. Boiled down to it's most simple points, it does draw that tree when it's told to. But HOW it draws the tree is very complicated.

[SirRoderick]

Try the Simple English Wiki http://simple.wikipedia.org/wiki/Graphics_Processing_Unit

[SkilledRebuilds]

Try the Simple English Wiki http://simple.wikipedia.org/wiki/Graphics_Processing_Unit

OP - Pretty much this.

[JuztBe]

Thanks for help. 

[ZetZet]

[SkilledRebuilds]

lol, got a chuckle from me,.. perfect pic for this Q.

[mansoor_]

I don't think this is something that can be explain in a forum post.

There are many different levels on which its operation can be explained.

The most basic would be that a gpu processing binary data across multiple

cores to rasterize an images (really difficult to do). They are preferable for

3d work as these are numerical intensive and require paralleled processing

to solve efficiently. (reason this is done on gpu is because it can excute

~10^3 32bit instructions per cycle, cpu ~10 per cycle, not that a cpu is worse

but it is not as optimize for this kind of tasks.)

[SkilledRebuilds]

I don't think this is something that can be explain in a forum post.

There are many different levels on which its operation can be explained.

The most basic would be that a gpu processing binary data across multiple

cores to rasterize an images (really difficult to do). They are preferable for

3d work as these are numerical intensive and require paralleled processing

to solve efficiently. (reason this is done on gpu is because it can excute

~10^3 32bit instructions per cycle, cpu ~10 per cycle, not that a cpu is worse

but it is not as optimize for this kind of tasks.)

Remember, OP said it has to be easily explainable to 'newbs' for his class. (They'd have to understand some of it at least)

Plus what you said, is kinda said in more laments terms in the Wiki in previous posts.

Not that I disregard your post, I think as accurate as it is, but it would confuse most people with 'overly complicated' wisdom.

[mansoor_]

Remember, OP said it has to be easily explainable to 'newbs' for his class. (They'd have to understand some of it at least)

Plus what you said, is kinda said in more laments terms in the Wiki in previous posts.

Not that I disregard your post, I think as accurate as it is, but it would confuse most people with 'overly complicated' wisdom.

Truth be told, I have wildly over simplified things. There loads of in-between processes skipped and things reduced,

there is no easy way to explain how gpus work. It is much easier to just explain what they do.

[A10-FTW]

this video do a good explanation of that at 2:10

 

[Doughnutnator]

This may be useful to show the difference between a GPU and a CPU

It's simple and funny.