Apple is raising Mac and iPad prices because the memory inside them got scarce, and 9to5Mac reported the math behind it. A 32GB DDR5 kit that sold under $90 a year ago now runs about $400, roughly a fourfold jump. The cause sits in the data center, where AI buildout has pulled memory production toward high bandwidth memory and starved everything else.
Samsung, SK Hynix and Micron have shifted roughly 93 percent of combined output toward HBM for AI racks, per TrendForce. HBM now consumes 23 percent of total DRAM wafer output, up from 19 percent in 2025. A single HBM3E module sells for about $60 to $100 against $5 to $10 for comparable conventional DDR5. The economics decide where wafers go.
HBM is the memory stacked beside the GPU die. It rides the same cold plate loop as the processor, a direct thermal load the cooling system has to hold at temperature. When 93 percent of production swings to HBM, scarcity and heat move together. Every high-density rack now carries hotter, costlier memory that the loop cannot let drift.
That stacked geometry is the problem. Vertical HBM towers trap heat against the package, and the cold plate has to pull it through a tight thermal path. This is the physics behind liquid cooling becoming mandatory at rack density, where air can no longer move the watts a modern accelerator rejects.
TrendForce projects mainstream DRAM contract prices rising 58 to 63 percent quarter over quarter into Q2 2026, after a roughly 90 percent surge in Q1 2026 versus the prior quarter. SK Hynix reports its HBM, DRAM and NAND capacity essentially sold out for 2026. Micron has exited consumer memory entirely, and new US fabs are not expected fully online until 2030.
Memory that expensive inflates the data center bill of materials, which tightens the capex line cooling has to fit inside. When DRAM eats a larger share of the rack budget, the cold plate, CDU and heat rejection plant compete for what remains, the same squeeze tracked in the 2026 cooling supply chain guide and the broader tariff pressure on cooling procurement. The consumer pays at the Apple Store. The operator pays at the manifold, where every dollar locked into sold-out HBM is a dollar the cooling loop has to justify against.