Forget the other guys, gaming PCs could be sitting pretty at around 90 million units by the end of 2007. According to IDC, an analyst group, Windows Vista is expected to obtain this mad install-base; the bulk of the installations are expected to be in home computers.
IDC expects out of those 90 million units that 67% will be Vista Basic and 30% will be Vista Premium (both private consumer versions). Vista requires the PC to have a semi-competent graphics processor, able to push DX9, just to function properly. This could mean the PC gaming market will enjoy more potential customers, especially among more graphically intense programs.