In January 2020 the gap grew in favor of the combined sales PlayStation 3 and Xbox 360 when compared to the aligned launch of the PlayStation 4 and Xbox One in the last month by 625,987 units. In the last 12 months the PlayStation 3 and Xbox 360 have caught up by 6.67 million units. The PlayStation 4 and Xbox One lead by a combined 13.54 million units.
The PlayStation 3 and Xbox 360 in their first 75 months sold a combined 139.81 million units, while the PlayStation 4 and Xbox One have sold a combined 153.35 million units.
The PS3 and X360 sold a combined 173.22 million units lifetime. The PS4 and XOne are currently 19.87 million units away from surpassing the PS3 and X360.
source: gamezpot.com