XScale is a microarchitecture for central processing units initially designed by Intel implementing the ARM architecture (version 5) instruction set. XScale comprises several distinct families: IXP, IXC, IOP, PXA and CE (see more below), with some later models designed as SoCs. Intel sold the PXA family to Marvell Technology Group in June 2006. Marvell then extended the brand to include processors with other microarchitectures, like ARM’s Cortex.
With the smartphone and tablet revolution dominated by ARM, with Windows and Apple moving to ARM, we can probably say that, with the magical superpower of hindsight, Intel selling its XScale business to Marvell will probably go down as one of the biggest blunders in technology history.
The entire computing world is slowly moving to ARM – first smartphones, then tablets, now laptops, soon surely servers and desktops – leaving Intel (and AMD, for that matter) in a terrible position.