When it shipped , it was using GPUs from 2011. In The PC world a 7970 is ancient. I had hoped apple would have had upgrade options for those GPUs.
It's crazy to be asked to pay $1000 to upgrade from an under clocked 7970 to almost a fully clocked 7970 in 2016, for that price you are getting 2x980s.
In a way I wish they ditched the silly can design, so users could upgrade thier GPUs.[/QUOTE]
The D300/D500/D700 are not a 7970 comparable GPU.
They are compute GPUs. And in terms of performance, they are comparably cheaper and perform pretty similar to their desktop counterparts even in today standards. From dual D300 which are the basic to a dual D700 and adding just 1000$ is relatively cheap compared to a full desktop version which cost almost 3 times as much.
Yes, the mac pro hadn't been updated much. But price relative wise, there is no reason for a mac pro buyer who bought it 2-2.5 years ago, to upgrade now (and people still rocking the G5 or older versions, if the performance is what works for you, there is no reason to upgrade anyway). Once AMD (or nvidia) can supply them with a worthy successor replacement graphics card, and intel provide them with a good upgrade, apple will bring a new one.