Opteron Quad vs Xeon Quad

[Todorov]

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Hi list,

I'm planning to buy two servers running FBSD AMD64, PostgreSQL, Diablo
Java, Tomcat.

3Ware SAS RAID + Supermicro mainboards

1.Opteron 2354 2.2GHz + Supermicro AS-2021M-UR+, MB H8DMU+ nVidia MCP55
Pro Chipset

2.Xeon E5420 2.5 GHz + Supermicro X7DWU, Dual Intel Xeon1600 MHz FSB;
Intel Seaburg chipset

I have few questions - are the NVidia chipsets stable enough and
performance good?

In the internet I've read a lot of opinions that Java+Opteron and
PGSQL+Opteron goes together :)

I will appreciate opinions - no flame to start - I've said what is my
target as usage. So I asked specific question..
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