Hello herrmant,
Intel® XTU is a feature that allows the user to modify the processor voltages and other settings to over clock it if the processor is an unlock version.
Baytrail is a standard platform for notebooks and tablets that is very limited by the device manufacturer. At this point, Intel® XTU is supported on Intel® Core processor only but I recommend you either testing an older version of the software or contacting the manufacturer to confirm compatibility.
Kevin M