Tretton plans to leave on March 31 after nearly two decades at the company.
The Sony PlayStation 4 sold 6 million units this year, according to a recent press release.
Sony's PlayStation 4 has sold 322,000 units in Japan following its launch on Feb. 22.
Also, Sony's next-gen console is now available in Japan.
Sony's next-gen PlayStation 4 will launch in Japan on Feb. 22.
Since Sony launched Music Unlimited in Japan in 2012, the country has been one of its best markets for the music-streaming service.
Sony Senior Vice President Guy Longworth said PS4 sales were nearly twice as high as Microsoft's.
However, Sony promises 100 games are coming with the next-gen console.
Get ready for a slimmer, lighter PlayStation Vita.
Fifty percent of PlayStation 4 owners are using PlayStation Plus.
Sony is looking into issues with the PlayStation network on the PS4.
Microsoft is offering $100 off its Xbox One if you trade in your PS3 or Xbox 360.
More than 10,000 people tweeted about the PS4 and the XBox One today, but which console got more tweets?
The next-gen console is currently available at various U.S. GameStop locations.
And there's a special, added content bonus for those who download the app.
Today on 60 Sec Tech: Sony’s passed Nintendo sales, SimCity gets a proper offline mode, and Audi thinks you can beat all the lights.
Sony announced that it has sold a truly impressive number of PS4 games.
China temporarily reversed a 14-year-old ban on video game console sales. However this didn't come without a few conditions.
Sony's PlayStation Now announcement causes GameStop stock to fall 8%.
We answer five questions about Sony's upcoming streaming service, PlayStation Now.
Sony announced its highly anticipated Gaikai-based game streaming service, PlayStation Now at International CES 2014 in Las Vegas, Nevada on Tuesday.
Sony announced that 4.2 million PS4s have been sold as of late December.