They admit that there are thermal limitations, but it's not really in the context of GPUs so much as the entire package. What they do admit specifically about G

They admit that there are thermal limitations, but it's not really in the context of GPUs so much as the entire package. What they do admit specifically about GPUs is that their entire prediction for the market was wrong, that multi GPU systems are not as important as the highest end single card on the market, and these cards simply can't fit in their current design dimensions. In other words, GRAM sizes, and max single card speed are the driving factors in GPU adoption. Which makes sense, because you only get the large increases in GPU speed if you can fit everything in memory, and throughput is not high enough yet to ignore the cost of copying data to GRAM. This is a tacit admission that Pro users are increasingly _not_ concerned with RAM capacity or CPU speed, but with GPU power. The other mistake made was their assumption that Thunderbolt would allow nearly unlimited peripheral expansion, which turned out to be a complete bust. Neither of things is solvable without completely changing the dimensions/specs of the Pro.