Baby Steps Toward 3D DRAM

[erek]

“3D DRAM is not just around the corner,
All efforts underway will require many years of development and evaluation before any of them achieves commercial traction. Lam’s proposals are just that. Someone else would need to run with them to develop a practical version. Samsung is focused first on its 4F2efforts before tackling stacking (at least according to its public statements). Thyristors are still in research, and Neo’s approach will need years of proving out.

It would be overly optimistic to expect much before the end of the decade. But based on current efforts, it appears likely that the world will end up with 3D monolithic stacked DRAM. The only question is what it will look like and when it will be ready.”

Source: https://semiengineering.com/baby-steps-towards-3d-dram/

 

[philb2]

“3D DRAM is not just around the corner,
All efforts underway will require many years of development and evaluation before any of them achieves commercial traction. Lam’s proposals are just that. Someone else would need to run with them to develop a practical version. Samsung is focused first on its 4F2efforts before tackling stacking (at least according to its public statements). Thyristors are still in research, and Neo’s approach will need years of proving out.

It would be overly optimistic to expect much before the end of the decade. But based on current efforts, it appears likely that the world will end up with 3D monolithic stacked DRAM. The only question is what it will look like and when it will be ready.”

View attachment 699193

Source: https://semiengineering.com/baby-steps-towards-3d-dram/

So can we expect 512 GB or 1 TB memory sticks by say 2030 or 2032?

How would Windows evolve to use all that available memory?

 

[erek]

So can we expect 512 GB or 1 TB memory sticks by say 2030 or 2032?

How would Windows evolve to use all that available memory?

did you see the 256GB sticks yet? do these count?

https://www.ebay.com/itm/1354253220...-ae54-063674d7863e|iid:1|vlpname:vlp_homepage

i see some 512GB, but they're Optanes also

 

[philb2]

did you see the 256GB sticks yet? do these count?

View attachment 699229
https://www.ebay.com/itm/135425322051?_trkparms=amclksrc=ITM&aid=777008&algo=PERSONAL.TOPIC&ao=1&asc=20230823115209&meid=545ae58d85014db784b745d07f6b5f91&pid=101800&rk=1&rkt=1&itm=135425322051&pmt=1&noa=1&pg=4375194&algv=RecentlyViewedItemsV2SignedOut&_trksid=p4375194.c101800.m5481&_trkparms=parentrq:eb461da41930ab4be6c936a5fffeb390|pageci:76740f0b-bfe8-11ef-ae54-063674d7863e|iid:1|vlpname:vlp_homepage

i see some 512GB, but they're Optanes also

A 512 GB Optane on eBay s kind of pricy: https://www.ebay.com/itm/2051313878...TNVeR+7WWChgS6VCAMS0AbfgGA==|tkp:BFBM5q2QwP1k

But even if I wnated to buy it, could it fit into my ASUS AMD X670e motherboard. And does the BIOS support it? I doubt it, so Optane memory does not count.

 

[Armenius]

So can we expect 512 GB or 1 TB memory sticks by say 2030 or 2032?

How would Windows evolve to use all that available memory?

Windows 11 Pro is limited to 2TB of addressable memory already. The actual limit of the kernel seems to be 6TB based on the Enterprise and Workstation versions. So I say bring on the 1TB sticks of memory.

 

[philb2]

Windows 11 Pro is limited to 2TB of addressable memory already. The actual limit of the kernel seems to be 6TB based on the Enterprise and Workstation versions. So I say bring on the 1TB sticks of memory.

For shits and grins, I did a search which produced the following answer:

In principle, a 64-bit microprocessor can address 16 EB (16 × 10246 = 264 = 18,446,744,073,709,551,616 bytes) of memory. However, not all instruction sets, and not all processors implementing those instruction sets, support a full 64-bit virtual or physical address space.

 

[DanNeely]

Windows 11 Pro is limited to 2TB of addressable memory already. The actual limit of the kernel seems to be 6TB based on the Enterprise and Workstation versions. So I say bring on the 1TB sticks of memory.

The memory limits below the maximally expensive server version are compiled in software locks (probably in the form of data structures that don't have space for more); they've been going up for decades and generally sit comfortably above what even an enthusiast would do. 2TB in Pro is surprising, other than the most monsterous server I can't imagine any system getting close; and i'd expect the limit to be put really big servers beyond the scope of nominal single user versions.