Natal's lead developer Alex Kipman has revealed that the upcoming peripheral will demand 10-15 per cent of the 360's CPU resources.

He added that the device can recognise any pose in just 10 milliseconds - quick enough to suggest that the final product won't suffer from lag issues.

And in under two-tenths of a second, says Kipman, Natal can recognise the body shape of a new user stepping in front of it.

To quote: "Natal has to work on the existing hardware without taking too much hardware processing away from the games developers," added Kipman in an interview with trade publication New Scientist.

The lead designer added that he and his team had collected "terabytes" of data of people making poses likely to appear during game play."

Lead XBox 360 Developer Exposes Project Natal Inner-workings

More PlayStation 3 News...