Why Last-Gen Hardware is Dropped
The Anvil engine overhaul introduces highly sophisticated fluid simulation mechanics for ocean wave heights, as well as dynamic wind direction patterns that dictate sails physics. These systems rely heavily on multi-threaded modern CPU architectures.
Because the Jaguar CPU cores in the PS4 and Xbox One cannot calculate these physics without dropping framerates below playable baselines, Ubisoft has restricted launch targets to current-generation hardware.