The Intel Mac era, spanning two decades, was a partnership that initially brought significant improvements to Apple's lineup, but eventually led to a shift towards Apple Silicon. This journey began with a simple idea from an Apple engineer, JK Scheinberg, who envisioned a Mac OS X version running on Intel processors. The initial project, codenamed 'Marklar', was a side endeavor, but it attracted attention within Apple, leading to a brief flirtation with Sony's Vaio laptops. The primary reason for the switch was Apple's dissatisfaction with the performance and limitations of the PowerPC chips, which were struggling to meet the demands of the company's innovative products. Intel's Paul Otellini played a pivotal role in convincing Steve Jobs to make the switch, and the transition was facilitated by the existing work on Marklar. The first Intel Mac, a Developer Transition Kit, was made available to developers, and the timeline for the full transition was outlined at WWDC 2005. The partnership with Intel brought about a series of fast and frequent updates, including the introduction of the MacBook Air, which was a machine that wouldn't have been possible with PowerPC chips. However, the relationship began to sour as Apple's own chip designs, like the Apple A-series, steadily improved, and Intel's manufacturing process faced challenges. The turning point came with the introduction of the Touch Bar in the redesigned MacBook Pros, which signaled Apple's growing need for custom silicon. The formal announcement of the Apple Silicon transition in 2020 marked the end of the Intel Mac era, with the final transition completed in mid-2023. The decision to ditch Intel was a bold move, but one that has proven to be the right choice for Apple, as it now enjoys consistent, generation-over-generation improvement in its custom-designed processors.
