EMC performance differences between BGA and QFN for BF70X?

Hello,

Does ADI have any EMC performance data it can share on the differences in performance / emission between the BGA and QFN packages (e.g., BF707 and BF706) in an apples-to-apples situation? 

I am aware that the QFN88 has a very large thermal ground pad as pin 89, but having only one other ground lead ( pin 76 ) makes me wonder if it is noisier than the BGA package.

Thank you,

Bob