The last home system to hit the 100 million mark was the Wii.
Video game industry research center DFC Intelligence anticipates that the and will both sell 100 million units by 2020.
The report, which DFC Intelligence shared with GamesIndustry International, also projects video game revenue over the next few years; the center raised its worldwide game revenue forecast to $77 billion this year, up from $68 billion in 2013. It also states that video game revenue could be in the neighborhood of $100 billion by the end of this decade, thanks to the “core gamer spending more than ever.”
DFC said that “price and strength in Europe give the PlayStation 4 a slight edge;” a difference that might also factor into the PlayStation 4 becoming the biggest console launch in history, though the Xbox One led console sales in December 2013.
The PlayStation 4 and Xbox One were released one week apart in November. The Nintendo Wii was the only system from the previous generation to hit the 100 million mark.