Even so these numbers do suggest good news for Microsoft, because they suggest the Xbox is doing loads better than Nintendo's GameCube.
Microsoft say the Xbox is selling twice as quickly as the GameCube in the UK, and also reckon it's been a bigger seller in the US for the last seven months.
Top bundles offer free and reduced games
The competition in the console wars has seen all three companies involved set up loads of bundles that offer free or reduced games as part of the console packages.