Quote Originally Posted by Gian View Post
We have some quad cores - with ATI 1900 ( Tiger ) and some eight cores with 8800 ( leopard ) Strangly, but the Tiger can run 4 layers of 1080p AIC and the Eight cores, 3 layers... sometimes 4.
Just as an example,... we had a event wich the movies are BLACK and WHITE, and we achived 5 layers of 1080p... so all depends on the content.
10.6.x and 2009 macs are significantly faster than the ones before

the processors are hyperthreaded - meaning the cores are split in 2- and 8 cores appears as 16 processes-

and 10.6.x uses all the cores to playback movies - it splits playback properly across all available processors

even on low end 2009 machine i get 6-8 layers