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Chapter 3: Using multiple Matrox Meteor-II boards
.
PCI bandwidth
requirements
Matrox Meteor-II /Standard has a low susceptibility to PCI bus latency due to its
4 Mbytes of video transfer memory. In addition, sustained PCI-transfers to
memory require the use of a high performance PCI core-logic chipset, such as the
Intel 820, 840, 850, 860, or E7505. If a high performance chipset is used with a
Matrox Meteor-II /Standard board, you should not have any PCI bandwidth
problems when grabbing up to two full-sized color images simultaneously (using
two boards). However, grabbing more than two full-sized color images
simultaneously might result in PCI bandwidth problems.
As a reference point, grabbing one full-sized NTSC or PAL image in real time will
require a PCI bandwidth of 35 Mbytes/sec or 42 Mbytes/sec, respectively, when
transferring in RGBX (32-bit) mode.
When grabbing from three or more Matrox Meteor-II boards simultaneously, you
will have to reduce the image size to avoid reaching the upper limits of the overall
available bandwidth.
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