There are more cases, e.g. the AGP bus (evolution of the original PCI bus for graphics, pre PCI-Express). I don't know if the limitation of the PS3 graphics chi

There are more cases, e.g. the AGP bus (evolution of the original PCI bus for graphics, pre PCI-Express). I don't know if the limitation of the PS3 graphics chip (NVidia RSX) comes because of being derivated from an AGP-based chip or because of a different reason.