PG, the new server feels ultra responsive, tell us the specs please

I'd like to know more about their TCP/IP Stack changes in the Kernel and their sysctl.conf settings :)

From <a href="http://news.ycombinator.com/item?id=5233445" rel="nofollow">http://news.ycombinator.com/item?id=5233445</a><p><pre><code> Old server: two Xeon E5450 chips, 3.0 GHz, 8 cores total, 24 GB RAM. New server: one Xeon E5-2690 chip, 2.9 GHz, 8 cores total, 32 GB RAM.</code></pre>