There are different types of cables are available for the better quality and better video output of your computer’s monitors and TV. Among them the HDMI is very popular as it is the latest one with full digital functions and the composite is also very famous and also known as the component. Both HDMI cable and Component Video cable deliver signals as three discrete color components, together with sync information which allows the display to determine when a new line, or a new frame, begins. While thinking about the difference between HDMI and composite it can be said that the HDMI cables are very high quality and very powerful for the best resolution for your monitor or TV’s picture quality while the composite is also working in the same color process of the HDMI but it is not able to provide these types of high quality video like HD and HQ and it is not able to support the blue rays or blue ray videos. So while buying any one of these two if you feel confused then you just need to think about the performance of these two types and if you want the best video quality for you monitor or TV’s then you must buy the HDMI.