The Megahertz myth explained by Rubenstein – Macitynet.it
The "Megahertz myth" and its inconsistency was one of the central topics of Steve Jobs' keynote in New York. During the introductory speech, as our readers now well know, the CEO invited on the stage the head of hardware development, Jon Rubinstein, to illustrate how technically explainable that a processor with fewer Megahertz can prove to be faster on the field (and sometimes much faster) than one who, if evaluated on the basis of the clock speed, should beat him with low hands. Rubinstein had illustrated the theory with a series of animations that showed how the secret was substantially in design and in particular in building processors with the so-called "pipelines" where the data is assembled, as short as possible. Rubinstein's presentation today at the center of a new page prepared by Apple which presents, in addition to the eight minutes of the keynote speech, also a series of information useful to support this thesis. In particular, a sort of graph appears in which a NetVista 1.7 GHz from IBM is compared with all the new machines of the Apple range: 733 MHz, 867 MHz and a Dual 800 MHz. The results of tests carried out in Photoshop would show that the Cupertino range always beats the IBM machine. They range from 33% performance increase of 733, up to 83% of Dual 800 MHz. The page closes with an illustration of the characteristics of the G4 processors in their use on Pro range machines. In short, a page of evangelism , good for adding "ammunition" to those who are confronted with a PC world that makes the race for megahertz its main marketing tool.