CPU usage for handbrake

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hi there,

have received 1 week ago new mbp 2011 15" (2,2ghz, hi-res 128go ssd) replace mbp 2010 (i7 2,66ghz). i'm satisfied :d :
* no heat: 32° idle on intel, 38° on ati , 50° in day use ati card
* fast in multitasks, video/audio editing, etc...
* ssd appreciable , although not fast sata 3 ones, guess difference hardly noticeable. close scores reboot, standby, etc... if apple ssd optimized mac os.

have 1 concern it: handbrake video encoding, handbrake process using 550-650% of cpu instead of closer 800%. have idea?
 

do have other applications running? if so, intensive applications logic or final cut or of adobe applications, system doesn't want starve them resources won't use ~800% cpu. check handbrake other applications closed , see if has effect. thing of settings in hb don't squeeze every drop of cpu. mess settings bit , see if has effect.
 


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