the 8 comes from the hyperthreading. hyperthreading is allowing effectively two processes on the same core, at the same time, sort of. it;s not quite dual core, but it's nearly there. it feels, and works like two processors. so if you have dual, dual-core hyper-threaded pentiums, you effectively have 8 logical cpu's under the bonnet. logical, not physical. there would still be only 4 physical cores working.
Originally Posted by Mikuro
it's still boggling. if say, quicktime encoding was able to take into account 8 processors effectively, we could see video encoding times quartered.
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