Stronger sold 225,000 in its first week WW. AIEW sold 345,000. (this is according to Mediatraffic, who doesn't take all markets)
That would be 62,000 internationally for Stronger, and about 90,000 for AIEW in its first week.
So yeah, probably a big difference in some markets.
We know Stronger did better in UK, US, NZ, stayed par in Canada, Australia and Ireland. It was a hit here in Mexico (certified GOLD)
In the rest of the European countries though like Austria, Netherlands, Switzerland, Germany, it didn't do as well as AIEW (AIEW peaked in the Top 10 in those four countries, Stronger was a Top 20 album)