Definitions of Vga card

VGA stands for Video Graphics Accelerator, serves to process data and graphics displayed on the monitor screen, VGA also has a processor called a GPU (Graphics Processing Unit) and requires memory as well. Today's motherboards in the market banayk using onboard VGA, so you do not need to buy another VGA card, this is very helpful to save on expenses. the difference between VGA OB (On Board) with a separate VGA with the motherboard are as follows: OB-VGA does not have its own memory so that the VGA OB use some of the capacity of RAM that is in the computer for work, so it will make the performance of RAM to be slow, but now several manufacturers of motherboards has launched a motherboard with VGA OB and has its own memory.
OB-VGA has lower performance when compared to an external VGA, but if your computer is not too used to playing games, especially the latest 3D games that require a larger capacity VGA then you can still menganalkan VGA OB you have, now that many motherboards with VGA OB who can match and even surpass the performance of the external VGA
VGA OB-shaped smaller with external VGA, it aims to save the cost of manufacture, small size is usually called microATX (mATX)

 
VGA Types:
1. Onboard VGA (VGA is already integrated with the motherboard)   
2. PCI VGA (VGA card the old version with a capacity of about 1-32 MB)   
3 . VGA AGP (Accelerated Graphics Port) is attached to the VGA AGP slot   
4. VGA PCI Express (VGA newest and fastest at the moment)