The company employed a 150-person engineering team which included people who had previously worked on processors like Itanium, Opteron and UltraSPARC.

[6] The PA6T was the first Power ISA core to be designed from scratch outside the AIM alliance (i.e. not by Apple, IBM, or Motorola/Freescale) in ten years.

[8] PWRficient processors were shipping to select customers, and were set to be released for worldwide sale in Q4 2007.

[10] Therefore, when P. A. Semi first publicly disclosed PWRficient, the company instead targeted embedded systems, such as networking equipment.

On 11 June 2008, during the annual Worldwide Developer's Conference, Apple CEO Steve Jobs said that the acquisition was meant to add the talent of P. A. Semi's engineers to Apple's workforce and help them build custom chips for the iPod, iPhone, and other future mobile devices[14] such as the iPad.