How do front side bus (fsb) and memory speed effect video performance?
Video applications in general require enormous amounts of memory bandwidth, this means that not only does the memory have to operate at a high frequency, but the fsb speed must match that frequency or either the fsb will be “waiting” on the memory or vice-versa. Ideally, the memory bandwidth and fsb are matched. For example, the Intel 865/875 chipset runs dual PC3200 memory (400MHz) and an 800MHz fsb speed. Both the memory and fsb can support 6.4GB/sec data transfer.