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.
--
Greg Smith 2ndQuadrant Baltimore, MD
PostgreSQL Training, Services and Support
greg@2ndQuadrant.com www.2ndQuadrant.com