my celeron system mainboard is 815e chips ,512m sdram
the Dual p3 mainborad is via,with 7xxm ram.

this is my file:
www.philsky.net/fly/test.mb
the raytracing almost cost 80% render time ,so as you say,this is the reason why dual p3 shower than celeron,I think...
thanks.
I were planed to buy a dual AMD anthod mp system,now,let's wait....