[Beowulf] Nehalem Xeons 55** series

Tiago Marques a28427 at ua.pt
Sun Feb 22 08:57:08 PST 2009

According to Kazushige Goto, these are the peak performance numbers he
obtained with Linpack and GotoBLAS, with tuning for Nehalem not yet

AMD Opteron "Shangai" 6MB L3 : 90% of peak
Intel "Nehalem" Core i7 : 95.2% of peak
Intel Itanium 2 : 95.6% of peak

It's a Core i7 but should give you an idea.

Best regards,
                            Tiago Marques

On Fri, Feb 20, 2009 at 3:30 PM, Ivan Oleynik <iioleynik at gmail.com> wrote:

> Does someone know whether Intel has already started shipping Nehalem Xeon
> 55** processors? Are there system integrators that have Nehalem servers
> already available for customers?
> How these Xeon 55** are compared to latest AMD Shanghais (clock by clock,
> performace/price)?
> Ivan
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