https://www.barrons.com/articles/intels-optane-chips-getting-closer-to-changi...More BS Intel PR being reported yet again, Optane isn't going anywhere except in Intel's wet dreams ..... 
OK, this is compare and contrast time.
Intel Optane vs Samsung, Micron and all the rest.
In 2015, Intel made a big noise about Optane (saying the whole world would be running on Optane "phase change" memory inside of six months) and Intel has actually sold some Optane stuff in the last 2 years, but it has only successfully been used as a cache memory of sorts in a few very large rack space applications
because Intel found they had early "read/write dependability" slowdown issues and a rather severe cost constraint acting against them.Then Micron jumped ship on the original Optane idea and left the partnership completely this past spring.Micron simply moved over to the Samsung side of things and threw their support behind the newer SD Association standards (currently at level 7) for both the SD/UC and SD/Express standards. Micron has mentioned some vague plans to do something with Optane II down the road (Optane II which is still completely undefined at this point in time).
Intel will have no rights to produce Optane III (as it will be designed by Micron at that future point in time). Optane III will require a new brand name then, too, as Intel does share rights to the word "Optane" and Intel has so abused and tarnished the image of the "Optane" brand name that it is unrecoverable at this point. Optane version 2 is muddled, and Micron won't finish working on it until Intel pays for all the Optane they had contracted for last year.
So, this can mean a "complete fuzzy something" may come leaping up at the world down the road because "Optane" as a term and as a standard is really truly completely undefined and totally unexplained at this point in time. Literally anything could be "Optane" to Intel's eyes ....... so please, buyer beware on Intel Optane stuff going out into the future. You really DON'T know what you are getting.
Impartial 3rd party tests of existing Optane set ups so far show that it does not yield the real performance levels that Intel advertised to sell it to you in the first place.===================================================
So, Intel is the only one producing any of the original Optane at 14nm only at this point in time. Micron, Samsung and the rest are running the new SD Association SD/UC standard at 12nm and at 10nm ..... and have plans to run the SD/Express level at 7nm next year (Samsung is currently starting early memory production at 7nm as we speak so you can easily see where this is headed inside the next 2-3 years).
Same general use limitations apply to both Optane and to SD/UC and SD/Express at this point in time ---
it really isn't fast enough to run as main systems memory just yet. But it is faster than the older SSD drive tech and certainly faster than any sort of platter hard drives.
Cost is still a real issue when you start talking anything about "Terabyte sized" anything in micro SD card sizes. Micro SD cards really are quite expensive once you go past 128 gigabytes heading up towards 258 gigabyte and 516 gigabyte sizes which are all that is available right now to be bought in SD/UC levels 1,2 & 3 on a Micro SD format.
These SD/UC levels 1, 2 & 3 cards are somewhat confusing right now, but they are REAL PRODUCTS and because of the current wide acceptance, lower cost and good availability these standards will be the eventual winners over the original Optane from Intel.
And yes, you could put your whole hard drive on a multi terabyte micro SD sized card swinging the SD Express double row of contacts "standard socket" starting early of next year.
You would need a device swinging the new SD/Express double row socket and some fairly deep pockets, but yes, you could go do it.
https://www.cnet.com/news/new-sd-card-uc-express-specs-tout-128tb-max-up-to-a...Point to consider, is that when 7nm production actually begins to shift down to 5nm (in 2-3 years from now this may actually happen) we will likely be at the SD Association's level 8 standards, and will still only be using less than half of the total capabilities that the new level 8 standard provides.
However, right now the Micro SD/UC grade cards at 10nm (grades 1-3) are readily available and for $18 shipped I found I could buy a 64 gigabyte card that supposedly is just as fast as my new phone can supposedly actually use. Android 8.1 is the first OS level that will supposedly really allow the card to "conjoin" with the 32 gigs of systems memory that comes on the Moto G6 in what is again promised as "a user seamless manner" under the control of an updated Memory Manager (newly re-implemented in Android 8.1). We shall see, my new 64 gig Micro SD/UC-1 card gets here this afternoon.
NO, IT IS NOT REAL YET
Nope, it is the same old SD stuff, music, pictures and maps and only a very few apps can move over to the SD card at this time even if the SD card is custom formatted and encrypted as "internal" and the Memory Manager is active. Memory Manager simply automatically takes the least used items off your systems memory as it starts to get full and puts those items over on to the SD card. My past experiences with Android phones being able to actually "seamlessly and completely use" the SD card memory WERE NOT REAL on all my past phones and I had hoped that this lack had finally changed for the better.
Nope, exactly the same restrictions are on the SD card use as before. Pictures, music, graphics and a few permittable apps are the only things moved over at this time ..... HOWEVER, there is a detailed set of folders created on the drive by the Memory Manager that could be filled up with properly sorted and filed items but that will only happen as your normal memory begins to clog up with stuff.The new "super card" installed as conjoined internal memory cannot be speed tested by any of the the old standard android SD card speed tests as they report it correctly as custom encrypted memory and they never were built to handle that sort of action.
........ oh well, I can't even test it to see if it is working right.