The PlayStation 4 and Xbox One versions of Tomb Raider: Definitive Edition were developed by different studios.

Nixxes has outed itself as the developer of the PlayStation 4 version, and it lists Sleeping Dogs developer United Front Games as responsible for the Xbox One edition.

“In addition to converting the game to PlayStation 4, Nixxes Software provided support to United Front Games, the developer responsible for the Xbox One version of the game,” said the company.

It seems that along with different developers, the two versions boast different frame rates as well.

During a live stream with GamesRadar, executive producer Scott Amos confirmed that the PlayStation 4 version runs at 60 frames per second.

“Our goal from the beginning was always to be 1080p gameplay at 30 frames per second minimum,” said Amos.

“Some people have taken that and misconstrued like, ‘Oh, it’s locked to 30!’ Actually, no, it’s literally, the game was always from the beginning, our absolute requirement was gameplay at 1080p and minimum 30 frames per second. And anything past that was gravy.

“That’s the kind of game we are, the kind of world we are, and as you’re sitting here looking at it, like we said on the PS4, this is running at 60.”

The frame rate of the Xbox One version is still to be confirmed, although rumours have it at something around 40 frames per second.

In response to the rumours, Tomb Raider publisher Square Enix issued the following statement: “Both platforms offer the same outstanding Tomb Raider experience.

“Delivering the core Tomb Raider gameplay at native 1080p and running at 30fps was always our primary goal given the type of experience Tomb Raider is and the exploration we want players to do.

“Anything beyond 30fps for this version is gravy.”

Tomb Raider Definitive Edition is out on Xbox One and PlayStation 4 on January 28.