Microsoft says it shifted 6.6m Xbox consoles during the last quarter of 2014.
The platform holder did not say how many of these were Xbox Ones or Xbox 360s, however.
In the UK, Xbox One topped the console rankings in November. But didn't in October or December - those months belonged to PS4. However, Xbox 360 continues to sell and there were actually more Xbox 360 games sold in the UK last year than for any other platform.
Overall, Microsoft's Devices division - which also includes Windows Phone, Surface and Bing, along with Xbox – increased eight per cent last quarter to generate $12.9bn in revenue.
Despite this, net profits for the entire Microsoft business fell from $6.6bn to $5.9bn as demand for PCs and Windows software faltered. The firm is hoping to turn these figures around with the upcoming launch of Windows 10.