Dual P4 STREAM results

[Greg Lindahl]

Now that dual "P4 Xeons" have been announced, using the same chipset
(860) as existing single-cpu P4's, everyone can learn that the STREAM
result for the dual system is basically the same as the STREAM result
for the single cpu, i.e. about 1.5 GB/s total. Dang.

I also saw an announcement that Serverworks has a 4-cpu chipset coming
out that will use 4 DDR SDRAM banks to give about twice the
theoretical bandwidth as the 860, for twice the cpus. Hopefully that
ratio holds true for STREAM, and then this would be the first
non-Intel chipset with great bandwidth. Unfortunately it's a server
chipset and will no doubt be expensive, but the disease is
spreading.... oh, and no, you don't *need* rambus to get the great
bandwidth.

-- greg