Rincewind42 said:Why do people think that ADC is holding us back on video cards anyway? Apple makes the video cards that use nVidia chips (because nVidia doesn't make video cards themselves) and ATi even sells ADC equipped Mac edition cards.
But the reality is that in order to make a video card for the Mac, you have to make it talk to Open Firmware. This means that an engineer (someone who makes say $70K a year) has to write code that talks to the Mac's ROM. This takes time and effort, and while it's a one-time cost for any single video card, it's one that the card maker has to put up front and hope they make enough money on the card to recoup the cost.
An ADC connector and all the incumbent circuitry for it probably costs a grand total of $5 per card over a DVI or VGA connector. There are setup costs for the manufacturing too, but that is the case for any new circuit board design. But since the ADC style card design is something that Apple's been producing for some 5 years now, all of those costs have long since been recouped. And the extra fabrication cost can be passed on to the customer on a 1:1 basis.
So the REAL issue holding back new video cards is the fact that Macs don't use a PC BIOS, not that the cards have an ADC connector. Do you want to scream at Apple that they don't use the "standard" PC BIOS but chose Open Firmware instead? No? Didn't think so.
The issue is not that it is hard to make Mac versions, its the fact that manufacturers have to essentially do a second production run for what is basically a small market. If Macs had better interoperability then the manufacturers could just do one huge run, and supply a mac driver and a pc driver. And Apple don't manufacture the card, they contract that out.