> Intel got Apple's business because they produced superior parts at a lower price
A big problem was that IBM was not designing low-power chips for laptops, and laptops were (and are) a major part of Apple's business.
Power6 (not PowerPC) hit 5 GHz in 2007 and Power has remained competitive - Power10 will be described at Hot Chips in August. Of course (perhaps consistent with "Hot Chips") these are not low-power architectures.
A big problem was that IBM was not designing low-power chips for laptops, and laptops were (and are) a major part of Apple's business.
Power6 (not PowerPC) hit 5 GHz in 2007 and Power has remained competitive - Power10 will be described at Hot Chips in August. Of course (perhaps consistent with "Hot Chips") these are not low-power architectures.