Why not use GPUs as CPUs

[MoonlightSylv]

GPUs being much more powerful why not use them as CPUs? (This may sound like a stupid question but I really want to know)

[Josephdalepi]

gpus run faster because youre able to let some errors through

cpu can not as it would ruin your system

[PampaZiya]

I think that's what GPU acceleration/computing is. That's when the CUDA cores are put to work in NVIDIA chips, i believe, I'm not sure

[Bl00dgod]

gpu's need a lot more watt

in theory this would increase the global watt usage with a multiplier of <insertnumberhere> or higher... that doesnt sound very good for the environment

 

and GPU's can run with some small errors while CPU hate errors

[LuX_]

GPUs have far more processor cores than CPUs, but because each GPU core runs significantly slower than a CPU core and do not have the features needed for modern operating systems, they are not appropriate for performing most of the processing in everyday computing. They are most suited to compute-intensive operations such as video processing and physics simulations.

 

= got it from this website http://superuser.com/questions/308771/why-are-we-still-using-cpus-instead-of-gpus

[QueenDemetria]

GPUs being much more powerful why not use them as CPUs? (This may sound like a stupid question but I really want to know)

A GPU on its own cant replace a CPU, its not built that way.

[DigitalHermit]

GPUs are not that great at single-threaded...

[Oberon.Smite]

Because they work differently. Basically they crunch numbers in different ways, and depending on the workload you should use a CPU or GPU. While yes, you CAN use a GPU as a CPU, and the other way around, it would not be efficient nor practical. 

 

Also, CPUs have few strong cores, GPUs have many weak cores.

 

[byalexandr]

CPUs are much, much better at doing a single thing or a set of things at a time and doing so without error. GPUs are made to do hundreds or thousands of small things at a time but they can let errors through.

[Tyrius]

Basicly what the others have said already, I have recently seen a video about it and I really like how they explain things on the channel, so I thought I'd drop it anyways: