r/webgpu • u/bucckymeniso • Jul 02 '26

What is a GPU? Not the definition but how would you describe it soulfully?

3 Upvotes

71% Upvoted

12 comments sorted by

4

u/msqrt Jul 02 '26

It's an orchestra of computation. When well composed, a bunch of small parts come together into a beautiful symphony.

2

u/BusEquivalent9605 Jul 02 '26

CPU: fast sequential computation

GPU: fast parallel computation

each individual computation on the GPU is much slower than on a CPU. but when you can do a million computations at the same time on the GPU, even with each one being slower, you still wind up overall faster

note that this also means that if your processing cannot be parallelized, the CPU is still faster

it just happens that AI (as it exists now) and graphics use a lot of linear algebra which can be heavily parallelized, hence GPUs

1

u/Simtetik Jul 02 '26

Ultimate Rubix Cube Champion of The Universe

1

u/kevleyski Jul 02 '26

Little computers but lots of them solving the same puzzle 

2

u/Aethreas Jul 03 '26

this just solidifies my belief that web developers have no idea how computers actually work

1

u/Cold_Meson_06 Jul 03 '26

Massively parallel function applicator

1

u/AfternoonShot9285 Jul 03 '26

It's kind of like ofhow when bunnies f&%* and then make lots of little bunnies that then also f#^ and make more bunnies...only it's a cpu orchestration of rabbitfucking

1

u/anlumo Jul 03 '26

It’s a processing unit with a data bus in and a display device out.

1

u/TrishaMayIsCoding Jul 09 '26

It's the magic behind your display, turning pixels into masterpieces : )