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A graphics card, sometimes called a graphics adapter, video card or graphics accelerator, is a computer component which converts digital data into a graphical form which can be displayed on a monitor.

The initial role of a graphics card was to send pixels to a screen, as well as a variety of simple graphical manipulations:

* Moving blocks (such as the mouse cursor);
* ray tracing;
* polygon tracing;
* etc.

More recent graphics cards now have processors built for handling complex 3D graphical scenes.

Diagram of a graphics card

A video card's main components are:

* A Graphical Processing Unit (or GPU for short), the heart of a graphics card, which processes images based on the encoding being used. The GPU is a specialised processor with advanced image processing capabilities, especially for 3D graphics. Because of the high temperatures that the graphics processor can reach, a radiator and fan are often mounted on it.

Answered by: M P at 1:44 PM on October 06, 2008 | M P's Q&A | Report Abuse
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Well, there are different types of graphics card available in the market for different purposes.

It would be hard to provide information about the best one as you have not specified your budget and configuration.

Some of the best graphics cards are :

1) Nvidia GF Graphic Card 7300GS 512 MB PCI-E 3 Yrs Waranty ( Price : Rs. 5000 - 5500 )

2) NVIDIA GEFORCE FX5200 GRAPHICS CARD 512 MB DDR, AGP8X ( Price : Rs. 5000 - 5500 )

For more detailed information , visit the following sites :

1) http://search.ebay.in/graphics-card _Video-Multimedia_W0QQfsooZ1QQfsopZ 1QQsacatZ18794

2) http://www.techtree.com/techtree/js p/list.jsp?list=prodcat_cathome&pro dcat_id=295
What is hard disk

Answered by: Alok Gupta at 3:51 PM on September 07, 2008 | Alok Gupta's Q&A | Report Abuse
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512 MB AEGX PHYSIX is best card.

PhysX is a proprietary realtime physics engine middleware SDK developed by NVIDIA (originally by Ageia, formerly known as the NovodeX SDK). PhysX can also refer to a PPU add-in card designed by Ageia to accelerate PhysX-enabled video games.

Video games supporting hardware acceleration by PhysX can be accelerated by either a PhysX PPU or a CUDA-enabled GeForce GPU, thus offloading physics calculations from the CPU allowing it to perform other tasks faster, and as such, the whole system can provide a higher framerate, resulting in a smoother gaming experience.

The price is $300

Answered by: Nagendra at 12:19 PM on September 07, 2008 | Nagendra's Q&A | Report Abuse
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