Mindaugas wrote:
  Hello,

  Now that both 4x4 out it's time for us to decide which one should be better 
for our PostgreSQL and Oracle. And especially for Oracle we really need such 
server to squeeze everything from Oracle licenses. Both of the databases handle 
OLTP type of the load.
  Since we plan to buy 4U HP DL580 or 585 and only very few of them so power 
ratings are not very critical in this our case.

  First benchmarks (http://www.anandtech.com/IT/showdoc.aspx?i=3091) show that 
Intel still has more raw CPU power but Barcelona scales much better and also 
has better memory bandwidth which I believe is quite critical with 16 cores and 
DB usage pattern.
  On the other hand Intel's X7350 (2.93GHz) has almost 50% advantage in CPU 
frequency against 2GHz Barcelona.

Barcelona was just announced yesterday. I wouldn't want to be betting my business on it just yet. Plus, AMD usually is able to up the clock on their chips pretty well after they've got a few production runs under their belts. If you've absolutely got to have something today, I'd say Intel would be a safer bet. If you can afford to wait 3-4 months, then you'll benefit from some industry experience as well as production maturity with Barcelona, and can judge then which better fits your needs.

--
Guy Rouillier

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