iTunes 4.2 & CPU usage

in iPod + iTunes + AppleTV edited January 2014
It appears for my powerbook and cube that iTunes 4.2 is better about its CPU usage during playback.

I typically minimize the window, then shrink it down so it is just 3 buttons (a tip I was told years ago to help minimize the CPU usage) and it seems to have gone down about 30% of what it was: 13% CPU usage with 4.1 versus 9% with 4.2.

Has anyone else noticed this? It may just be my imagination...
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