What's a few GHz, more or less?
At 2003’s WWDC keynote, Steve Jobs stood onstage and announced the Power Mac G5. Powered by dual 2.0GHz PowerPC 970 processors, the top-of-the-line G5 was the fastest Mac that Apple had released to date, and according to Jobs, it would reach 3GHz within a year.
Technical challenges hampered the PowerPC 970’s development, though, leaving Jobs in the uncomfortable position of having to explain why the Power Mac G5 was stuck at only 2.5GHz the following year. The moral? Always err on the side of caution when discussing future products.