Honestly not trying to make it a shouting match, but obviously I already did. 1,500-2,500 GB/s is a pretty far cry from 3,200-3,500 GB/s.
Direct comparisons are pretty sparse because Apple, but even the most fanboi site of them all parrots LaptopMag's benchmarks showing Apple barely breaking 2,500 GB/s in synthetic tests at unrealistic que depths on a benchmark designed for Apple.
https://www.macrumors.com/2018/07/13/2018-macbook-pro-fastest-laptop-ssd-ever/
The fact that they purposely compared Apple's PCIe SSD with a stable of OEM SATA SSDs shows why they're invited to Apple events and real, objectively neutral journalists like PCPer, TWIT, and Gamers Nexus haven't been invited to an Apple event in the last decade.
Despite my intense hatred for Apples criminally anti-competitor, anti-consumer practices, I'll happily praise their build quality and any new advances they make that genuinely pioneer a given space, but don't drink the Kool-Aid too hard. They are iterating in the worst possible way, while getting praise for releasing a mediocre refresh of a product they let sit and collect dust for 4 YEARS while continuing to charge clueless Apple customers release date prices for abysmally old, under-performing systems. Something literally no other PC manufacturer would get away with without massive criticism. Even their newest systems don't support BT 5.0 or 802.11ax Wifi. They stopped being an innovator in the space before Steve Jobs died and now they're coasting on Cult of Mac fanboyism as a fashion company.
The new Mac mini is only 3x3x14mm smaller than the Luna Design DNK-H that supports an open component architecture and a wide range of MB/CPU/RAM/Wifi options.
They didn't even mention the fact that the CPU's are off the shelf socketed desktop parts, likely because they'll brick your device if you try to swap it, even with a same/similar part with identical TDP. Impressive that they decided to tackle thermals and space constraints with that formfactor, but ultimately it was probably deemed easier and cheaper than designing a potentially even more complex mobile CPU thermal solution.