SK Hynix Unveils World's First HBM4 Technology, Pushing Boundaries in AI Memory Solutions

SK hynix showcases world's first HBM4: 16-Hi stacks, 2TB/sec memory bandwidth, TSMC logic die

As an Amazon Associate, we earn from qualifying purchases. TweakTown may also earn commissions from other affiliate partners at no extra cost to you. SK hynix showed off its next-gen HBM4 memory at TSMC's recent North American Technology Symposium, with up to 16-Hi stacks and 2TB/sec memory bandwidth per stack, ready for NVIDIA's next-gen Vera Rubin AI hardware. SK hynix showed off both 12-Hi and 16-Hi stacks of HBM4 memory, which feature a capacity of up to 48GB, up to 2TB/sec memory bandwidth, and I/O speeds rated at 8Gbps, with the South Korean memory leader announcing mass production for 2H 2025, and into AI GPUs by the end of this year, flooding the market with HBM4-powered AI GPUs like NVIDIA's next-gen Vera Rubin in 2026. We will see SK hynix's world-leading HBM4 memory chips inside of NVIDIA's upcoming GB300 "Blackwell Ultra" AI GPUs, with the company planning to shift fully into the arms of HBM4 memory starting with Vera Rubin later this year. SK hynix also pointed out that they've managed the high number of layers through using Advanced MR-MUF and TSV technologies. SK hynix also showed off its family of server memory modules, with RDIMM and MRDIMM high-performance server modules now being build based on the latest 1c DRAM standard, which pushes module speeds up to an impressive 12,500MB/sec. SK hynix said: "Notably, SK hynix exhibited a range of modules designed to enhance AI and data center performance while reducing power consumption. These included the MRDIMM lineup with a speed of 12.8 gigabits per second (Gbps) and capacities of 64 GB, 96 GB, and 256 GB; RDIMM modules with a speed of 8 Gbps in 64 GB and 96 GB capacities; and a 256 GB 3DS RDIMM".

SK Hynix Showcases World's First HBM4 Technology To The Public; Featuring 16-Hi Stacks, 2.0 TB/s Bandwidth & TSMC Logic Die

SK Hynix decided to showcase its HBM4 implementation to the public at TSMC's NA Technology Symposium, alongside several other memory products. Well, when it comes to HBM manufacturers in the market, it seems like SK hynix is way ahead of all others, especially with its HBM4 technology. It is claimed that the firm has already prepared a commercial version of the process, whilst competitors like Micron and Samsung are still in the sampling stages, which shows that, at least for now, SK Hynix is winning the race. At TSMC's North America Technology Symposium, the firm showcased what it calls "AI memory" leadership by unveiling several new products discussed ahead. First and foremost, SK hynix gave the public a preview of its HBM4 process, giving a slight rundown on specifications as well. So, we are looking at HBM4, which has a capacity of up to 48 GB, 2.0 TB/s bandwidth, and an I/O speed rated at 8.0 Gbps. SK Hynix has announced that they are looking for mass production by H2 2025, which means that the process could see integration into products as early as the end of this year, which is amazing. It is important to note that the Korean giant is the only firm that has showcased HBM4 to the public. Alongside HBM4, we saw SK hynix's implementation of the 16-layer HBM3E, which is also the first of its kind, featuring 1.2 TB/s bandwidth and much more. This particular standard is said to be integrated with NVIDIA's GB300 "Blackwell Ultra" AI clusters, as NVIDIA plans to transition to HBM4 with Vera Rubin. Interestingly, SK Hynix claims that they have managed to connect so many layers through Advanced MR-MUF and TSV, and we are probably looking at the pioneer of the mentioned technologies. Apart from HBM, SK hynix also showcased its lineup of server memory modules, notably RDIMMs and MRDIMMs products. High-performance server modules are now being built based on the newer 1c DRAM standard, and this has resulted in the modules reaching speeds of up to 12,500 MB/s, which is simply astonishing. Notably, SK hynix exhibited a range of modules designed to enhance AI and data center performance while reducing power consumption. These included the MRDIMM lineup with a speed of 12.8 gigabits per second (Gbps) and capacities of 64 GB, 96 GB, and 256 GB; RDIMM modules with a speed of 8 Gbps in 64 GB and 96 GB capacities; and a 256 GB 3DS RDIMM. - SK hynix There's no doubt that SK hynix currently has an edge over the HBM and DRAM markets, beating long-standing players like Samsung mainly by driving innovation and partnerships with the likes of NVIDIA.