Chipsets and memory speed...
hahn at coffee.psychology.mcmaster.ca
Mon Dec 11 08:54:19 PST 2000
> ALL current Intel motherboards have a single shared bus for all CPU access
> to main memory. PCI DMA to main memory may or may not collide with CPU to
according to the specs, at least, boards based on the profusion chipset
(aka corollary) have *two* shared buses - it's essentially two 4-way
nodes (cpus on FSB100 with dram) with a cache-coherent bridge. it should
be able to sustain the traditional ~400 MB/s on each side. hellishly
expensive, though, and nowhere near competitive with ultra-cheap uniprocessor
duron nodes that push upwards of 600 MB/s.
regards, mark hahn.
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