# Samsung's 12-layer HBM4E chip can reach speeds of up to 16 Gigabits-per-second.

*semiconductor · news · 2026-05-29 · CNBC*

## Key points

- Samsung has begun global shipments of its new 12-layer HBM4E high-bandwidth memory chip.
- The HBM4E chip achieves up to 16 Gigabits-per-second speeds with improved energy efficiency.
- Samsung's 12-layer HBM4E offers 48GB capacity, over 30% higher than the previous generation.
- Samsung plans to launch 8-layer 32GB and 16-layer 64GB HBM4E configurations for customers.

Shares of Samsung Electronics surged as much as 6.51% after the company said it had begun shipping samples of its latest high-bandwidth memory chip to its customers globally. Samsung's 12-layer HBM4E chip, which it described as an industry first, can reach speeds of up to 16 Gigabits-per-second "with improved energy efficiency and thermal performance," the company said in a press release. High Bandwidth Memory chips, such as those produced by Samsung, SK Hynix and Micron are used in advanced artificial intelligence systems. They help processors handle large amounts of data quickly, required by AI accelerators such as Nvidia 's Rubin and Google' s Ironwood Tensor Processing Unit. Samsung's 12-layer HBM4E, which stacks Dynamic Random-Access Memory vertically, has a 48-gigabyte capacity, representing more than a 30% increase compared with the previous generation, the company said. The South Korean chipmaker added that there are plans to expand the lineup to include an 8-layer 32GB and a 16-layer 64GB configuration, depending on customer requirements. "Through our advanced manufacturing capabilities and preemptive infrastructure investments, we will continue to drive the growth of the global AI memory market," said Sang Joon Hwang, executive vice president and head of memory development at Samsung Electronics. The news comes after Samsung began shipping HBM4 chips to customers in February, as it seeks to narrow the gap with SK Hynix and strengthen its position in the next-generation AI memory market. Shares last traded 3.67% higher at 310,500 won.

**Companies:** Samsung Electronics, Nvidia, SK Hynix, Micron
**Countries:** South Korea, United States

[Read the full story on CNBC](https://www.cnbc.com/2026/05/29/samsung-hbm4e-chip-samples-ai-memory.html)

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