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Carmack: Rage PS3 Lagging Behind Xbox 360, PC

Rage from id Software is the famed developer's upcoming game for PC, Xbox 360 and the PlayStation 3.

While developing for the Xbox 360 alongside the PC is fairly simple, we've heard multiple times from many developers that making a game for the PlayStation 3 can be a challenge.

Even with its engine designed for multiplatforms, id Software is experiencing difficulties squeezing performance from the PS3.

"The PS3 does lag a little bit behind in terms of getting the performance out of it," said John Carmack, lead programmer at id Software, quoted in an interview with Edge.

Currently the Xbox 360 (and PC version with the right hardware) run at 60 FPS, but the PS3 version is lagging behind at only 20 to 30 FPS.

"The rasteriser is just a little bit slower – no two ways about that. The RSX is slower than what we have in the 360," Carmack acknowledged. "Processing wise, the main CPU is about the same, but the 360 makes it easier to split things off, and that’s where a lot of the work has been, splitting it all into jobs on the PS3."

Carmack isn't giving up on the platform, however, as the plan is to get the PS3 version running at the same speed as all the other ones.

"Everything is designed as a 60 hertz game. We expect this to be 60 hertz on every supported platform," he added. "The work remaining is getting it locked so there’s never a dropped frame or a tear, but we’re confident that we’re going to get that."