The rest of the article.
It is believed that Apple is working with AMD to expand its potential sources for CPUs in order to increase its flexibility and broaden its competitive options, but also likely in response to problems it has encountered with Intel. These issues include limited availability of new processors (which is rumored to have slowed Apple's notebook refreshes) as well as new chipset designs imposed by Intel that have blocked the Mac maker's plans to continue a partnership with NVidia to deliver a standardized chipset for use with its Intel processors across all of its consumer computer offerings.
Is Apple Getting Into Bed with AMD?
There is no way I can agree with AppleInsider’s report when they say that “AMD currently offers few advantages in terms of performance or efficiency.”