Difference Between Similar Terms and Objects

Difference Between CPU and GPU

gpuThe CPU or Central Processing Unit is where all the program instructions are executed in order to derive the necessary data. The advancement in modern day CPUs have allowed it to crunch more numbers than ever before, but the advancement in software technology meant that CPUs are still trying to catch up. A Graphics Processing Unit or GPU is meant to alleviate the load of the CPU by handling all the advanced computations necessary to project the final display on the monitor.

Originally, CPUs handle all of the computations and instructions in the whole computer, thus the use of the word ‘central’. But as technology progressed, it became more advantageous to take out some of the responsibilities from the CPU and have it performed by other microprocessors. In the days before GUIs, the screen was simply a small grid with each box having an 8bit value that corresponds to a character. This was relatively very easy to do for the CPU, but GUIs have greater resolutions with each pixel having a 16bit or 32bit color value.

GPUs where originally developed to render 2D graphics; specifically, to accelerate the drawing of windows in a GUI. But as the need for 3D and faster graphics acceleration grew, the GPU became faster and more specialized in its task. GPUs are now generally floating point processors that can easily crunch geometric computations along with texture mapping tasks. Most GPUs have implemented MPEG primitives to make enhance the playback of videos; some even have the capability to directly decode HD video data, taking another task away from the CPU.

Hardware wise, GPUs and CPUs are similar but not identical. If we looked at the very building block of each, the transistors, we can see that most GPUs already rival CPUs in transistor count. The specialized nature of GPUs means that it can do its task much faster than a CPU ever can, but it is not able to cover all of the capabilities of the CPU. Multiple GPUs can also be employed to achieve a single goal much like the dual core CPUs currently available. ATI’s Crossfire and NVidia’s SLI allow users to connect two identical GPU’s and make them work as one.

Summary:
1. CPU is the brain of the computer the GPU is only meant to complement it.
2. GPUs are specialized and cannot replace the function of a CPU.
3. CPUs can perform the functions of a GPU but at a much slower speed.
4. GPUs can rival CPUs in transistor count.
5. GPUs can also work in tandem just like the CPU’s multi core capability.


Search DifferenceBetween.net :

Custom Search


Help us improve. Rate this post! 1 Star2 Stars3 Stars4 Stars5 Stars (19 votes, average: 4.32 out of 5)
Loading...

Email This Post Email This Post : If you like this article or our site. Please spread the word. Share it with your friends/family.



11 Comments

  1. Thanks for the simple, straight forward explanation. This will be my go to place for DB’s

  2. Thx 4 ur valuable infos. Although I expected more figures of data flow etc of CPU & GPU as well to uderstand it properly, nt only in text format.. As I’d seen in dIGIT magazine earlier. If u’v more info abt this & related topics thn I’ll b thnkful if u send those valuable infos to my email.

  3. Thanx……………..
    If you have more information about it then please send me on my email ……….

  4. Really helpful…..
    Thnkz a lot….

  5. Thanks for this explanation very interesting. Thanks again.

  6. thanks for your valuable informations

  7. Good post very helpful

Trackbacks

  1. Difference Between VGA and DVI | Difference Between
  2. Difference Between NVIDIA and ATI | Difference Between | NVIDIA vs ATI
  3. Difference Between XGA and VGA | Difference Between | XGA vs VGA

Leave a Response

Please note: comment moderation is enabled and may delay your comment. There is no need to resubmit your comment.

Articles on DifferenceBetween.net are general information, and are not intended to substitute for professional advice. The information is "AS IS", "WITH ALL FAULTS". User assumes all risk of use, damage, or injury. You agree that we have no liability for any damages.


See more about : ,
Protected by Copyscape Plagiarism Finder