The gap grew in favor of the PlayStation 3 and Xbox 360 in March 2017. The gap in the latest month shrunk by 152,166 units and by 395,334 units in the last 12 months. The PlayStation 4 and Xbox One lead by a combined 21.02 million units.
The PlayStation 3 and Xbox 360 in their first 41 months have sold a combined 65.45 million units, while the PlayStation 4 and Xbox One have sold a combined 86.47 million units.
[Source: vgchartz.com ]