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VGA Frame Grabbers - Review and Selection Guide Capturing a VGA signal, or even a DVI signal, in order to save it to a computer for archiving, editing, or even broadcasting requires a device called a framegrabber, or frame grabber. Whether you are looking for a VGA frame grabber or a DVI frame grabber, there are several choices that must be looked into before being able to make an informed decision about a purchase which this article will briefly discuss. The first step is to determine what needs to be captured with the frame grabber. [VIEW ARTICLE]Comments RSS Feed For This Article: 
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Subject: Question about frame rate
The article is very interesting. Now I just want to know how the frame rate is tested. What is the setup. As I know for Unigraf, it is a PCI card with maximum data transfer rate of 133MB/s = 139460608 bytes/s. At 1280x1024 24bit image, each image's size is 3932160 bytes. Then the maximum transfer rate in images is: 139460608 / 3932160 = 35.47 frames/s. Then how can it achieve 42 fps capture rate? Please enlighten me. Thanks.