proffesional hardware support needed

[Anonymous]

Hi

I want to build a hardcore workstation for Archicad 10 and since i dont know much about Archicad i would like some advice (if i say somthong silly please excuse me i am just beginner )
I want to design a whole city in archicad if that is possible , with werry specific data , my question is , how much RAM would i need AND witch has better preformance:
2x Amd Opteron 2.6 GHz Processors or
2x Intel Xenon 5000 2.6 GHz Processors

And ofcourse the VGa Card
Nvidia Quadro Fx 4500 with 512 MB

Remember i need maximum performance , btw thanks for reading and for the help

[Greg Kmethy]

Above all: make sure you have a 64-bit operating system.
Read this:
http://archicadwiki.com/Windows_XP_64-bit_edition

[Anonymous]

I have already read that anyway thx , i`ll make sure it`s 64bit OS
And that means that i dont need more than 4GB RAM , wont it be faster with like 6GB or 12GB?

[Greg Kmethy]

ArchiCAD is a 32 bit application, which means that 4GB is the maximum it can address.

This is also worth reading:
http://archicadwiki.com/What_kind_of_machine_should_I_buy

[Anonymous]

Thx for he help