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NeoGAFs Kent Brockman
Balthazar Auger, lead game designer on Quantum League, told us that while it's something that will prove to be beneficial to developers working on Xbox exclusives, for multiplatform studios, it won't make too much of a difference, because, they'll be "bound by the lowest-spec target hardware."
"I think it will mostly matter to Xbox-exclusive titles, which will be able to be programmed to get every drop of extra juice from the machine," Auger said. "It may also buy the new console a longer generation cycle. However, all developers building multi-platform titles are bound by the lowest-spec target hardware, so the only advantage I can imagine there would be stabler framerates on higher-end resolutions for the Xbox Series X."