At least, with the 2013 design, they could theoretically delegate the PCIe functionality to an external enclosure connected via Thunderbolt 3. Now, the single-CPU-socket motherboard has always puzzled me. Don't they want to take advantage of the Xeon's ability to run multiple in parallel? Am I missing something?
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YESS: we've entered the Post post-PC era !
Anything you can't do with an iPad, which is close everything, you can now do with a Mac
With the exception of Angry Birds, this was always true. People use iPads for work, but I don't know those people... everyone I know uses a Mac or other PC. Makes a lot more sense in most cases.
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Yes! Make the "Trash Can", replace the CPU with a modern i5/i7. 512Gb storage default and dual 480's, or even dual 1060's and i'd be willing to consider it for a casual gaming computer.
But as a complete high end workstation? it's a miss
It oughtta replace the super overpriced Mac mini that they still claim is "important" but is likely getting the axe. Seriously, for those who need something more than a low-end machine, the Mac Pro is way overkill for most. Lots of expensive enterprise-grade features like Xeon performance, ECC, multi-socket CPU support, dual GPUs, NUMA, etc in the Mac Pro, and its parts are rarely upgraded. Consumer-grade isn't a whole lot worse but is a whole lot cheaper, assuming new vs new (since used servers are hella cheap).
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..because otherwise, if they wanted a modular, upgradeable and configurable Mac, rather than spend a year or two designing something "amazing" they could have just gone to one of the many Hackintosh sites and followed the instructions...
I wish. I've successfully set up multiple Hackintoshes but have never considered them a viable alternative. If an update or something screws up my work machine, I'm finished, and I cannot use "my Hackintosh broke" as an excuse.
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They made three assumptions, none of which panned out, but took years to become clear:
1) Software would move from supporting single CPUs to dual CPUs. It has in some areas, but not in most. So that second CPU is an unneeded cost center for both Apple and customers.
2) Intel would improve their processes more than they have (we're supposed to be at 10nm but we have years more of 14nm before they're ready) to allow more powerful CPUs with lower TDPs and power needs.
3) Thunderbolt would have advanced faster than it did (in terms of bandwidth / throughput) to allow external storage and processing to keep pace with internal (or at least not fall well behind).
1: You mean multiple cores or multiple CPU chips? Once you buy Xeon, you're already assuming you're using parallel processing, else you'd buy i7 with fewer cores and better per-core performance. Apple only put one CPU chip in the latest Mac Pro, but older ones (like mine) had 2. There are some more nuanced performance considerations that come with that.