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DRAM manufacturing capacity limits AI data center expansion to 15GW through 2026
Thursday, January 8, 2026 at 08:08 AM
Macquarie analysis suggests that the DRAM industry can only support 15GW of AI data center capacity over the next two years. A 1GW data center with 400,000 high-power GPUs requires 18,000 DRAM wafers per month across HBM and main memory. With total new DRAM supply limited to approximately 250,000 wafers per month, there is a significant supply gap compared to industry plans for 40-50GW of capacity, threatening projected 40% AI chip growth rates.
Context
Macquarie highlights a major supply chain constraint, warning that DRAM manufacturing capacity will limit AI data center expansion to just 15GW through 2026. This creates a massive gap between infrastructure goals and reality, as global plans currently target 40–50GW of capacity over the next three years. This shortfall places the industry’s projected 40% CAGR for AI chips at risk, signaling that hardware demand is rapidly outstripping the physical ability to produce necessary memory components without cannibalizing existing markets.
The bottleneck is driven by the extreme density of modern AI clusters. A standard 1GW data center utilizing 400,000 GPUs consumes over 18,000 DRAM wafers monthly for HBM and system memory. With total new DRAM supply limited to approximately 250,000 wafers per month, there is insufficient overhead to support planned expansions. For investors, this suggests a prolonged period of tight supply and potential price volatility as manufacturers prioritize high-margin AI orders over consumer electronics.
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