Cheap PCs from Wal-Mart
hahn at physics.mcmaster.ca
Mon Jun 2 19:15:12 EDT 2003
> > hmm. for rhetorical purposes, let's compare the numbers from this article
> > to two high-end unis:
> > dhry whet mmi mmf memi memf
> > e800 1048 285 963 1588 194 208
> > e10k 1300 351 1193 1968 233 245
> > e10k-n 1591 366 2255 2285 664 389
> > p4 6809 9327 22170 13896 5050 5041
> > ath 3319 8855 13011 12217 2912 3080
> I wonder what the specific details was for the aove p4/ath cpus.
it's not interesting or relevant. for the record, by "high-end",
I meant "highest end currently available". that is, P4, FSB800,
i875, 2-3 GHz. the highest-end Athlon is significantly lower-end
(single ddr400 I think, PR3200).
> For the $$$ difference betwen a p4/amd and c3 ... it seems
sure, high-end desktops are more expensive than integrated
appliance boards, no surprise there. the point is that they're
also dramatically faster. being much faster means you can't just
ignore how slow the VIA chips are, at least not in this context
(compute clusters). remember that speed advantages are often
*multiplicative*, so you might get 4x speedup from CPU, 7x from dram,
2x from disk, 8x from gigabit for a total of 448x! guaranteed
not to exceed, of course, but the principle is sound...
> like a non-issue for performance of spending the extra $50 - $100
> for better performance in the above benchmark numbers
AMD is lagging in uniprocessors, no question, no surprise.
it's astonishing that a non-fly-by-night company could simply
forget to deal with that little issue of motherboards.
afaikt, there are hundreds, possibly thousands of shops worldwide
who could produce a basic 6-layer motherboard without breaking a sweat...
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