2008/10/22 Mark Hahn <[EMAIL PROTECTED]> > Are there some informal comparisons of Shanghai vs Nehalem? >>> >> >> I beleive that Shanghai performance increase in comparison w/Barcelona >> will be practically defined only by possible higher Shanghai frequencies. >> > > is that based on anything hands-on? > > IMO, AMD needs to get a bit more serious about competing. if I7 > ships with ~15 GB/s per socket and working multi-socket scalability, > it's hard to imagine why anyone would bother to look at AMD. either: > > - there is some sort of significant flaw with I7 (runs like a > dog in 64b mode or Hf turns into blue cheese after a year, etc). > > - AMD gets its act together (lower-latency L3, highly efficient > ddr3/1333 interface, directory-based coherence).
AMD could MCM 2 shanghai chips, resulting in 6 cores (2 tri-cores) or 8 cores (2 quad cores) and "quad channel" memory interface. But nothing prevents Intel doing it too. > > > - AMD satisfies itself with bottom-feeding (which probably > also means only low-end consumer stuff with little HPC interest). > > I've had good reason to be an AMD fan in recent-ish years, but if Intel > is firing on all cylinders, AMD needs to be the rotary engine or have more > cylinders, or something... > > _______________________________________________ > Beowulf mailing list, Beowulf@beowulf.org > To change your subscription (digest mode or unsubscribe) visit > http://www.beowulf.org/mailman/listinfo/beowulf >
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