Apple seems to have some problems with the calculation of the cpu load for processes which really stress the cpu. Just open up several tabs with videos on YouTube and you will see how your cpu load will raise over 100%. Out of curiosity: Does Apple already has a patent in software-overclocking? Update: The activity monitor sums up all the cpu usage for any thread within an existing process. Means, depending on the amount of cpu’s or cores and the amount of threads for that process, the cpu load canContinue readingMinefield @123%