By March 2015, combined PlayStation 4 and Xbox One sales will reach 30 million units, according to Ubisoft CEO Yves Guillemot. He gave the figure today during a post-earnings financial call.

Right now, the combined install base of the PS4 and Xbox One is somewhere around 10 million units. Sony has sold 7 million PS4s, while Microsoft officially sold 3 million Xbox Ones by the end of 2013. Microsoft has not shared a new worldwide sales figure for the platform so far in 2014, but the system sold 115,000 units in April in the US alone, so the number is actually north of 3 million.

Guillemot didn't say which platform he thought would sell more. As a third-party publisher of multiplatform games, it stands to reason that Guillemot and Ubisoft would like to see both the PS4 and Xbox One thrive.

Also during the call, Guillemot praised Microsoft's recent decision to cut the Xbox One price by $100, dropping the system to $399, saying it should help the system sell more units overall.