Oracle 9i and 9iAS installation

I have to set up a development environment for a project. Currently we have a server running 9iAS and development database schema (not 9iAS) installed on a box with dual 1.4 Ghz processors and 6 gigs of RAM.

Would I see a performance difference if I installed 9iAS on one box, and the database schema on another box? Does 9iAS take alot of processing power and memory?

I'm new to the Oracle world, so if you need to ask me questions to ******** go ahead. Thanks for the help in advance.