Sony not expecting PS3-like losses for PS4 - GameSpot.com
Kato said Sony spent "hundreds of millions" in designing the PS3's chip set and "billions" on semiconductor fabrication because these technologies were not readily available.

"There were no manufacturing capacity or technology to manufacture these chipsets. So the amount of investment that went into PS3 was quite big," Kato said.

By comparison, Kato said the PS4 is a much "lighter" platform in terms of investment due to its PC-like architecture.

"At the core, we are taking off-the-shelf technology available and we are putting our proprietary technology around that core chipset," Kato said. "The amount of investment is much, much smaller. I cannot give you the absolute amount."