Rambus announced the launch of its HBM4E memory controller IP, a silicon‑IP solution that delivers up to 16 Gbps per pin, 4.1 TB/s per device, and 32 TB/s when eight HBM4E stacks are combined.
The new controller builds on Rambus’s track record of more than 100 HBM design wins and expands the company’s portfolio beyond its core DDR5 interface chips, supporting its strategy to become a comprehensive memory‑system provider for AI infrastructure.
"Given the insatiable bandwidth demands of AI, it's imperative for the memory ecosystem to continue aggressively advancing memory performance," said Simon Blake‑Wilson, SVP and general manager of Silicon IP at Rambus. He added, "As a leading silicon IP provider for AI applications, we are bringing the industry's leading HBM4E Controller IP solution to the market as a key enabler for breakthrough performance in next‑generation AI processors and accelerators."
"HBM4E represents a significant milestone for HBM technology, delivering unprecedented performance for advanced AI and HPC workloads," said Ben Rhew, corporate vice president and head of the Foundry IP Development Team at Samsung Electronics. He further stated, "HBM4E IP solutions will be essential for broad industry adoption, and Samsung looks forward to collaborating closely with Rambus and the wider ecosystem to drive innovation in AI."
"AI processors and accelerators need high‑performance, high‑density HBM memory for the massive computational requirements of AI workloads. As the requirements of AI processors and accelerators continue their rapid rise, HBM solutions must advance apace. HBM4E IP reaching the market now will be an essential building block for designers of cutting‑edge AI hardware," noted Soo Kyoum Kim, program associate vice president, Memory Semiconductors at IDC.
The HBM4E offers 16 Gbps per pin, a 60 % increase over the 10 Gbps of HBM4, and is expected to be adopted by upcoming GPUs such as NVIDIA's Rubin Ultra and AMD's MI500 series accelerators.
The launch positions Rambus to capture a larger share of the growing HBM market, potentially opening new revenue streams in the high‑performance memory segment.
The product launch represents a major operational milestone for Rambus, marking a shift from a primarily IP‑licensing model to a broader system‑relevant semiconductor company.
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