That whole segment is a bit detached from real market factors. The "double duo" is competitive with the 4090 is completely detached from price. The double Duo is $10,000. The 4090 is $2,000 ( card plus maybe some power and or thermal upgrades for the rest of the box. ) So these 'competes with' costs 5x as much. Is that really going to complete? The Performance/$ it is not even close. Sure there are some folks who can 'dump' wildly uncompetitive Pref/$ costs onto their clients, but that isn't going to work for the bulk of the market.
If (and that is a big 'if' ) Apple looked over at the Nvidia side 'looking' for competition it is far more likely that they would be looking at the RTX 6000 Ada . That card lists for $6,800
NVIDIA lists RTX A6000 ADA GPU at $6,800 The fastest RTX workstation card launches a month after it was supposed to. NVIDIA RTX 6000 (Ada Generation) We have already reported on RTX A6000 ADA pricing a few weeks ago, as it was revealed by some US retailers. However, the card did not actually go...
videocardz.com
Apple's W6900X , which goes unmentioned in the above quote about 'duos' , goes for $6,000 . That is probably a 'floor' of what Apple would charge for some hyper low volume , hard to source package. Apple would be eyeballing problems that were more in the > 32GB VRAM range that the RTX 6000 Ada goes after to leverage same reason paying lots more in both cases.
The reality is that a large fraction of folks yelping for dGPUs are really focus on priced anchored mainstream consumer level priced dGPUs. Not high end Pro GPUs pricing. The clamor for a 7900 MPX module is largely so they can skip the MPX module and buy some retail off-the-shelf card at much lower prices (either now or at even lower prices much later in used market). It is the same unhealthy ecosystem market dynamics that plague the early Mac Pro 2006-2013 EFI (not UEFI) era where folks went through lots of gyrations to not buy the 'official Mac GPU" and bootleg ROM imagines onto mainstream cards at lower prices. People wanted the cards but didn't want to pay for the drivers.
Apple merging into UEFI over time was largely a mirage that Apple was excited about the retail consumer dGPU card market. They were not. That was largely mostly a side effect of requirements of the Intel CPU (and iGPU) a spill over into Mac systems sitting on top of the same major components ecosystem. Apple make complaints that they didn't like UEFI. ( T2 scrubbed/validating firmware for security holes before handing only a copy to the Intel CPU). And basically dumped the whole boot stack on the M-series transition. If Apple was hyper , super duper in love with retail consumer GPUs cards they wouldn't have made that move.
Every full size MPX module that Apple made was
not priced at retail consumer GPU norms . The retail GPUs were not the primary design objective. MP 2019 allowed them to be used , but that was more a secondary consideration after design decisions that Intel and/or AMD made .
I highly doubt the vast bulk of the Mac Pro market is out to spend > $50k per system. That Mac Pro being the 'conspicuous consumption" system of the Mac line up isn't a role that I think Apple wants it to be in. The Mac Pro pressing problem now is actually delivery value/$ , not getting to the highest price tag ever. The gold Apple Watch was a goofy tangent to what really needed to be done in the Watch space. It is not what Apple historically does really well. Apple isn't about delivering the most affordable system possible. However, they are about as equally bad at delivering the most expensive system possible too. $50k and a default 1 year warranty. Really? No onsite tech support. No grand multiyear roadmaps . etc etc. Apple as a whole isn't that kind of vendor.
$50K can get you a Threadripper 5000 series 64 cores and
two RTX 6000 Adas.
The next Mac Pro would probably do much better to put more value in the $6K-36K price range than trying to come up with some $45K 'new shiny' that they sold to less than 4,000 a year units. If Apple added 4,000 units to the 6K-36K zone and lost 4000 in the over $36k zone then that would be a net loss of zero of units sold. A $6K computer with just a AMD 5500 or 6600 GPU is not really competitive in most of the single user workstation market. The Mac Pro as a product line would be helped greatly if $6K was at least 'North' of a W5700. (i.e., they need to move more GPU performance down the price ladder. Not crank the ladder up to reach the top of the skyscraper. ). The bottom "half" of the current Mac Pro price range has more problems than the upper 5 percentile does.
So Apple has a strength outside the 3D and super high end VFX work zone , but the Mac Pro shouldn't lean into that area where Apple has a significant lead? Really? The Mac Pro could be an even 'hotter knife' for even 'thicker butter'... but skip that.