Kazunori Yamauchi has you covered. Speaking to VentureBeat, the Gran Turismo creator reckons the latest game in Sony's flagship racing series taps "about 80 percent of the processing power" of the PlayStation 3," adding, "the PS3 hardware has a very high peak performance. The better you manipulate it, the better it performs."
That last quote sounds more like it's about an engine than a console, which isn't surprising given the amount of time Yamauchi spends behind the wheel of the actual supercars from his oft-delayed game. We seriously hope he's not aiming to use 100 percent of the system's potential -- we'd really like GT5 to come out before a child born today is able to drive a real car.