@Bion1nc ,
my take on that is that since we got 64 bit machines (macbook 2011/macmini 2012/ cMp5.1...) the most performances gain we had came from storage, networks and gpu....
any machine with a 2,8 Ghz quad core I7 a nvme ssd and a good GPU is capable to tackle the hardest jobs in reasonable time....
yest retina display are cool, 4k, blablabla...
but today my 2011 macbook still perform as good as the 2018 of my friends and they didn’t bought a serious workstation, they just went to top of the line macbook...
truth is they call me to come edit on my cMp because it is faster than their imac or macbook and it is hooked to a tesla 4gpu 1 u enclosure and files are on a 10GBe network to the xserve with a netapp 24 bay raid array...
keeping my 2011 and spending the 4000€ of a 2018 macbook into a true workstation gave me such an advantage in deadlines, and peace of mind...
no mater the footage and effect that I throw at it it will never choke or crash...
so in one word, since the i7 quad and the X5690 we have reach a power witch doesnt justify spending the money versus the performance gain...
the only thing to remember is that a single X5690 new back in 2010 was 7000€.... so we are comparing performance of old top of the line datacenter hardware, to modern high end user hardware...
apple could indeed built a quad xeon platinum « hp z8 like » workstation with 4 gpu, 4 pcie SSD and 1,5 Gb of ecc ram... but it would be 50k€ and none of us would buy it...
the sweet spot for a « solo entrepreneur desktop workstation » is 2-3 thousand €.
maybe larger companies will buy machines up to 6-8k€.
and only very big production house would buy a 50k€ machine...
so why would they do that when the can just make people buy extra mac min to form a cluster now that they have a cheap 10gbe interface...
with the arrival of the 10gbe interface, gives a solid machine to machine 900mb/s witch is very close to pcie 2x...
so now imagine a macpro with a cool top of the end i9 10 cores and four 10gbe port .... where you can plug four hexacore mac mini...
you get a 34 core machine all with dedicated cooling / cpu/ ram/ and outputs.... for less than a maxed out imacpro...
cluster over 10gbe is the future for me...
like raid has become normal those day...
15 years back when i started using raid aray, people where : « WTF do you take yourself for google? calm down mofo! »...
and now the same people are begging me to built them a storage server with xserve and netapp chassis for 3000€...