The MDM8225 chipset supports UMTSonly devices, the MDM9225 chipset supports LTE and UMTS devices and the MDM9625 chipset supports LTE, UMTS and CDMA2000 devices.
It goes without saying that these devices carry different radios to cater to regional needs, with the Droid DNA and the J Butterfly both supporting CDMA and LTE on top of UMTS. However, only the Droid DNA comes with quad band UMTS radio, thus making it a better global phone.
In July 2006, there were 45 different notebook models with embedded broadband--either EV-DO or UMTS modules--from nine notebook companies, and only seven networks had approved embedded wireless for notebooks.