VGChartz' William D'Angelo writes: "This first chart compares aligned home console sales between the 7th and 8th generations. That is the Xbox 360, PlayStation 3, and Wii combined sales aligned, versus the combined aligned sales of the Xbox One, PlayStation 4, and Wii U.
The 8th generation has struggled to keep up with the 7th generation - thanks in large part to the poor performance of the Wii U relative to its predecessor - and in August 2015 the gap grew by 1.24 million units.
The 7th generation home consoles in their first 22 months sold 58.86 million units, while the 8th generation consoles have sold 46.19 million units. The 7th gen currently leads by a total of 12.67 million units.
7th Generation Total Combined Home Console Sales: 58,858,490
8th Generation Total Combined Home Console Sales: 46,189,096
Total Lead: 12,669,394 – 7th Generation"