Intel Atom

During the ongoing Computex 2013 show, Intel unveiled their latest generation Atom chipset

The upcoming Samsung Galaxy Tab 3 will use an Intel Atom chip (of the Clover Trail variety), rather than a rival based on ARM architecture

Windows variants with Core processors could be under $500

According to a leaked roadmap, it appears that Intel's tiny, low-power Atom processors will remain 32-bit-only until at least 2015.
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After a presentation about AMD's future in SOC processors, a company executive declines to rule out making ARM chips

Intel Atom processors will power new Android handsets from Motorola to be released later this year.

Technology Review's preview of the new Medfield Atom processor from Intel suggests ARM could be in for some serious competition.