This was the same situation with the old Powermac G4 models. But even then they don't always work 100%. This is why some Mac users (in order to use a the less expensive version of a video card from a Windows computer).try to 'flash' the Windows video card with Macintosh ROM.so it will work on a Mac Pro. For example.I know of an older video card model (used in older Mac Pros) that in used condition for Windows computers sells for $20 bucks.and the same used card for a Mac Pro will sell for $100 or more.
For example.many Windows computer video cards will have a serial port on it.where Mac video cards almost never have a serial port.Īlso.the same video card for a Macintosh may cost 2 times more than the same video card for a Windows computer.especially when we are talking used cards. Many times it's just the ROM instructions on the video card.but sometimes there are different ports on each card. the exact same video card that may be available for both Windows computers & Mac's are definitely different.