Graphics cards are hardware devices. Graphics cards of various processing abilities, functions, designs, memory size and capacity are available in the market. Graphics card tapping is done to enhance the performance of your personal computer. Processing ability is the most important feature in a graphics card. Higher processing capability signifies a better and faster graphics card. The pipelines and clock speeds are also important factors in the performance of a graphics card.
In every model number, the suffixes represent the pipeline and clock speed. The GT and GTX are recommended suffixes when you buy a graphics card. The latest version of graphics card which consist of the SLI capability, almost doubles the performance of the graphics card. Choose the graphic card according to the usage of your computer. If you are an avid gamer then it is advisable to select graphics card of SLI capability though they are quite expensive. Motherboard with in-built graphics is recommended for normal users.