Intel max 10 dimensions - datasheet & BSDL mismatch
The datasheet will be correct. Notice the table states that the unit is "millimeters".

I dont know why the Eagle dimensions are wrong. There doesn't seem to be any dimensional data in the BSD file, so I'm not sure how Eagle can interpret it.

In fact, in the BSD file it says at the top:

Package : 8 mm 153 MBGA


Which matches the 8mm of the datasheet.