If the rumours about the switch prove correct, the move will end a decade-long relationship between Apple and IBM.
When IBM began making chips for Macs in 1994 that deal ended a single-source relationship Apple had with Motorola.
Even now Motorola subsidiary Freescale produces chips, known as PowerPC processors, for Apple's notebooks and the Mac Mini. IBM produces PowerPC chips for Apple's G5 machines.
The Mac Mini could be the first Apple machines to move to Intel chips with the more powerful machines following in 2007.