Samsung Executive Says HBM4 Doubles Bandwidth and Cuts Power, Lifts Shares
Samsung shares reversed a 1.5% intraday decline to finish 0.4% higher after its DRAM head revealed that upcoming HBM4 modules will deliver over twice the bandwidth of HBM3 and cut power use by 30%. The upgrade boosts prospects for Nvidia to secure larger HBM4 supply for its AI GPUs in late 2026.
1. Executive Highlights HBM4 Advances
Samsung’s DRAM division executive outlined that HBM4 will more than double the per-stack data throughput compared with HBM3, while reducing power consumption by roughly 30%, signaling a major leap for high-performance computing memory.
2. Stock Rebounds on Technical Insight
Following the comments, Samsung shares flipped a 1.5% intraday drop into a 0.4% gain by market close, reflecting investor confidence in the company’s next-generation memory roadmap.
3. Implications for Nvidia’s GPU Supply
As a leading consumer of high-bandwidth memory, Nvidia stands to benefit from Samsung’s HBM4 ramp, securing higher-volume supply to support its data center GPU production and alleviate AI hardware constraints.
4. Memory Market Context
The shift underscores intensifying competition in the HBM segment, with Samsung racing against other suppliers to meet surging demand from AI and accelerated computing workloads.