Sony said at GDC this week that PlayStation 3 has sold 41.6 million units worldwide since its release in 2006, contradicting the latest number given in its official financial reports, which stands at 47.9 million.
The figure was published on a slide at panel held in San Francisco, as reported by Joystiq.
Sony also said that PSN revenue was up by 70 percent with traffic to the PlayStation Store up by 60 percent.
It also confirmed that over 70 million PSN accounts have been made since the service launched with the console.
Recently, it was confirmed that 4 million PS3s had been sold in the UK.
Sony is expected to see a massive 2011 with PS3 thanks to what is probably the best first-party line-up this year, including Uncharted 3, Resistance 3, inFamous 2, Motorstorm Apocalypse and The Last Guardian.