Testing computers through render scenes in bryce (version 5 and high).
http://www.bryce-3d.narod.ru/bryce_test_eng.html
My last result :
Intel Core 2 Quad Q6600 (Actual Frequency 2,4 GHz, quad-core processor), Win'XP SP2, DAZ bryce 7 Pro,
Render time : 1 minute 06 seconds.
bryce Test for multi-core processors :
http://www.bryce-3d.narod.ru/bryce_test_multi_eng.html
Good luck !