Power consumption? Can definitely say yes just from experience- I did a lot of early testing on the Pro and that thing would eat up batteries. Doing a quick look around, it used the LISA-U2 chip whereas the normal Dash uses the SARA series. Looking at the data sheets I don't see huge differences in current consumption across the variety of transmission stages. I'm not sure what would cause the differences since a lot of the Pro documentation isn't around anymore. Are you transitioning to the Dash (new) and looking for longer battery life?