What are the differences between video capture boards?
Some video capture boards are also used for displaying the video as well as capture. Sharing the resources of the capture boards may be disadvantageous since it is using valuable processing power and inherently causes slower transmission for a variety of technical reasons, especially when trying to simultaneously capture image from multiple cameras. Video capture boards are usually described in terms of how many camera input it will support and how many image per second (ips) or frames per second (fps) it is capable of recording. IPS and FPS are used synonymously. Beyond these two basic reference points, there are significant differences that are usually not described by most manufacturers. Just like PCs, there are several subcomponents that go into making the product fast, stable and efficient and can cause the price as well as the performance of the products to vary radically.
