In a long interview today Marc Whitten of Microsoft confirmed how much of the Xbox One’s 8GB RAM will be taken up by the OS and games. He did this indirectly by not denying past rumors of the RAM being broken down this way. He was directly asked if 3GB RAM was used for the OS and he shyed away from answering, hinting that it may be true. In addition to that, Kotaku has reported that the OS uses 2 CPU cores, 3GB RAM AND 10% of the GPU.
It has been rumored for months now that the OS for the new Xbox would use 3GB RAM and Whitten confirmed in this interview that it will require “around” 3GB. So it could be a bit more, could be a little bit less. This leaves about 5GB RAM for game developers.
That is considerably less than what is expected from the PS4. Sony’s next console is expected to only need 1GB for its OS, though that could always change.
5GB of RAM for developers isn’t something to scoff at though. Even if the Xbox One isn’t rocking the 8GB GDDR5 memory like the PS4, it still isn’t a slouch. There is no doubt that a good part of that 3GB OS RAM is taken up by the console’s ability to multi-task and suspend applications on the fly. The transition process between film, tv, and games was almost instant. That’s sure to require a fair amount of memory.
UPDATE: A lot of people have been questioning whether Marc Whitten not outright denying things like 5GB RAM is really “confirming” indirectly. I understand this concern. Over the past week or so, multiple developers have cited that they’re fine with using the Xbox One’s 5GB game RAM, like Avalanche Studios, makers of Just Cause.Microsoft confirms: Xbox One OS uses 3GB RAM, 5GB RAM for games,