I actually tested dropping up 2 exact copies of a photo folders on Google Drive and Dropbox. Google Drive is way way slower due to lack of block level syncing

I actually tested dropping up 2 exact copies of a photo folders on Google Drive and Dropbox. Google Drive is way way slower due to lack of block level syncing and other issues. You shouldn't be looking at the bandwidth usage you should be looking at how long it takes the files to sync.