AI buildout still faces 65% supply stress as DDR5 DRAM stays the top bind
tengyanAI · x · 2026-07-28
AI buildout remains supply-constrained, with DDR5 DRAM still the biggest bottleneck
The post says the AI buildout is still under heavy supply stress, with 35 of 54 tracked constraints rated tight or tightening, or 65% overall.
- The top binds are DDR5 DRAM (86/100), Blackwell (86/100) and HBM3e (80/100).
- The author says the main bottleneck is still commodity DRAM: Blackwell can ship, but the rack still pays a “memory tax.”
- Two watch items this week: SK Hynix for ASP realization and Unimicron for CoWoS substrate mix.
- The attached Tessara dashboard tracks chips, memory, packaging, power and other infrastructure links across the AI stack.
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