While many might think that "Ultrabook" is a generic term for a new performance ultra-portable notebook form-factor, it is a registered trademark of Intel, which governs the specifications of what qualifies to be an Ultrabook. Intel will launch a well-defined Ultrabook platform based on its third-generation Core processor family, codenamed "Ivy Bridge", later this year. Meanwhile, AMD is finalizing a performance ultra-portable specification of its own, powered by its next-generation "Trinity" accelerated processing units (APUs), which it will call "Ultrathin".

Ultrathin will be designed to offer competitive CPU performance to Ultrabook, and superior GPU performance to it, at target prices 10-20 percent lower than Ultrabook. In 2012, while Intel bagged about 75 design wins for its Ultrabook platform, AMD claims to have already won 20. AMD's Ultrathin platform will have advantages over Intel's Ultrabook with regards to platform and component costs. The average AMD Ultrathin with $100~$200 cheaper than the average Intel Ultrabook. Some notebook vendors are concerned that a competitive platform to Intel Ultrabook could result in a price-war between the two platforms, and end up reducing the prices of the now profitable-looking performance ultraportable segment.