Xbox director of program management Jason Ronald told IGN that because of the smaller resolution texture packages required for games on Series S, which will run software natively at 1440p as opposed to at 4K on Series X, install sizes will be significantly reduced.
“With a performance target of 1440p at 60 fps, our expectation is that developers will not ship their highest level mipmaps to Xbox Series S, which will reduce the size of the games,” he said.
“Ultimately the controls in the developer’s hands. We’ve had this technology for a while that allows developers to intelligently choose which assets to install on which device they’re playing on. So the flexibility is in the developers’ hands to make sure the right assets are there.”
Microsoft said last week that Xbox Series X and S pre-orders will begin on September 22.