I don't think the "pro market" is doing anything but buying PCs now.
Apple could/should release a new MBP with low-middle graphics capability (yet with a whiz-bang feature like that OLED bar) so it will bump up sales and look good on a quarterly call.
I don't think more than a handful of Apple fans would know the difference between great performance and ok performance since their current machines are so outdated anyway. Anything at this point would be such a boost that they'd not question it a bit.
this is likely true across the entire Apple product lineup.
the 21" iMac's use mobile parts and are significantly slower than desktops
the 27" iMac's that use desktop parts suffer from Thermal throttling. Most noticably the underclocked i7-k model they use was purposely picked so they could limit the thermals by underclocking and thermal throttling.
the rMBP used to bea great pro device and flagship performance, but if we're seriously talking about further using the 15w ULV parts instead of the 45w parts, then again we're going to be getting a performance dowgrade for "thinner"
the MBA has all but been forgotten
and nobody should expect performance out of the rMB even if it is a pretty little computer.
the Mac Pro was already being surpassed performance wise at the time it was launched and you could easily put together a single GPU / Xeon with todays parts for a fraction of the cost that is significantly faster.
as of right now, there's not a single Apple computer product that has high end performance
Neither do you, because that would be 100% dependent of how Apple deals with things.
Anyway, dGPUs mean less battery life, bigger form factors or throttling, and higher risk of damage. Macs shouldn't have components from AMD or Nvidia.
well, thats not true at all.
There's more to the shift to a new architecture than just one company.
every single MacOS program would have to be recompiled, rewritten and redistributed. including teh OS. You would break compatibility with thousands of existing software titles.
on top of that, yo would lose complete compatibility with the 95% of the rest of the windows/linux running world.
Then you get into limitations of the ARM cpu and Ax processors in power. Sure, benchmarked, the A10 is great. and it is a truly wonderful mobile CPU for a phone /tablet. But even the fastest scaled ARM Cpu's are not even remotely close to anything but the lowest end Intel CPU's. once you move to 45w parts, or desktop parts, there's no current ARM based CPU that is going to keep up, nevermind whatever emulation it might require to run a rosetta like platform for legacy.
Such a move would alienate a lot of users, probably more so than just slow to update products. I for one, spent my life straddling between MacOS, windows and unix variants. if suddenly Apple's computer could no longer run windows, parrallels or *nix, than i would have absolutely no choice but to abandon Apple