Apple chief executive Steve Jobs boasted at the Macworld tradeshow last week that the new iMac would offer at least a 200 per cent performance boost over previous generation G5 systems.
"What is different is that the new iMac [with the] Intel processor is two to three times faster than the iMac G5," Jobs promised delegates.
Apple based its findings on two benchmark studies in which systems were tested in a controlled environment. But Macworld pointed out that such tests fail to reflect performance in real-world applications.
The new Mac machines actually showed an average performance increase of 10 to 25 per cent while performing a series of everyday tasks with software especially designed for the new systems.
In a few cases the new systems showed an improvement of roughly 80 per cent, but this could not be attributed solely to the new processor.
Intel's neural network USB stick could bring AI to the masses
Dubbed Barnard's star B, newly discovered planet is believed to be rocky
Also, what's a USB stick?
Gravitational waves become extremely weak by the time they reach the Earth and require highly sensitive equipment for detection