On Mon, Jan 11, 2010 at 4:17 PM, Greg Smith <g...@2ndquadrant.com> wrote: > Scott Marlowe wrote: >> >> The DDR3 Nehalem and DDR2 AMD are both actually pretty close in real >> world use on 4 or more socket machines. Most benchmarks on memory >> bandwidth give no huge advantage to either one or the other. They >> both max out at about 25GB/s. >> > > The most fair comparison I've seen so far is > http://www.advancedclustering.com/company-blog/stream-benchmarking.html > which puts the faster Intel solutions at 37GB/s, while the Opterons bog down > at 20GB/s. That matches my own tests pretty well too--Intel's got at least > a 50% lead here in many cases.
But that's with only 2 sockets. I'd like to see something comparing 4 or 8 socket machines. Hmmm, off to googol. -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
