Monday, November 29, 2021

SK Hynix reveals 12 stacks 24GB memory module of its next-gen HBM3 memory

- Advertisement -

Last month we saw SK Hynix confirming that it’s developing a new 24GB HBM3 memory with an immensely high bandwidth performance of 819GB/s per stack. This announcement was the introduction of their next-gen high-bandwidth memory and since next-gen CPUs and GPUs will require faster and stronger memory, HBM3 might be the answer which we need to support in the future.

And now, during the OCP Summit 2021, SK Hynix has officially released the details of their next-gen memory modules. JEDEC, the group “responsible for HBM3,” is yet to release the final specs on the new standard of memory modules, but, SK Hynix has published specifications from their initial tests.

These tests show us the speeds which the memory can achieve and the speeds are 5.2 Gbps to 6.4 Gbps. But, we still are unsure as to which one of the two speeds will be close to what will be globally produced for “next-gen accelerators.”

In the tests, it was stated that the 5.2 to 6.4 Gbps module featured a total of 12 stacks with each connected to a 1024-bit interface. We can expect that these new stacks can increase bandwidth speeds per stack, ranging from 461 GB/s to 819 GB/s.

HBM Memory Specifications Comparison

I/O (Bus Interface)1024102410241024
Prefetch (I/O)2222
Maximum Bandwidth128 GB/s256 GB/s460.8 GB/s819.2 GB/s
DRAM ICs Per Stack48812
Maximum Capacity4 GB8 GB16 GB24 GB
tCCD2ns (=1tCK)2ns (=1tCK)2ns (=1tCK)TBA
VPPExternal VPPExternal VPPExternal VPPExternal VPP
Command InputDual CommandDual CommandDual CommandDual Command

In other news, AMD officially introduced us to its new Instinct MI250X accelerator on Monday, and the company is planning to offer a whopping 8 HBM2e stacks, with a clock speed as high as 3.2 Gbps. These stacks offer a total capacity of 16GBs which is equal to 128 GBs incapacity.


- Advertisement -
Avatar of Nivedita Bangari
Nivedita Bangari
I am a software engineer by profession and technology is my love, learning and playing with new technologies is my passion.


Please enter your comment!
Please enter your name here

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Related Articles

More To Consider


Stay Connected

Boat Lifestyle [CPS] IN

Hot Topics

Latest Articles



Adblocker detected! Please consider reading this notice.

We've detected that you are using AdBlock Plus or some other adblocking software which is preventing the page from fully loading.

We don't have any banner, Flash, animation, obnoxious sound, or popup ad. We do not implement these annoying types of ads!

We need money to operate the site, and almost all of it comes from our online advertising.

Please add to your ad blocking whitelist or disable your adblocking software.