Over the last few months, both Microsoft and Sony have been talking up the ability for their upcoming systems to record the last few minutes of gameplay in a persistent buffer that can be edited and shared online after the fact. Now we’re getting word on just how much recent gameplay will be kept cycled on each system; five minutes on the Xbox One and 15 minutes on the PlayStation 4. The Xbox One number comes courtesy of Microsoft Studios creative director Ken Lobb, who mentioned the stat during a demonstration of the new Killer Instinct for Gamespot at San Diego Comic-Con this weekend. “It’s called Project Upload. So the idea is you’re always recording,” Lobb said. “So we have a ring buffer game DVR, basically. So the last five minutes of any game you’re playing is always being stored locally on your hard drive.”