GoKawiilMemory Prices
Historic and current memory and storage prices, collected in the spirit of John C. McCallum's classic memory-price dataset — interactive, with the raw data downloadable. Hover for details, click the legend to toggle series, drag or use the slider to zoom, and use the camera icon to export an image.
Price per gigabyte over time Historical lowest $/GB on a log scale — one line per memory type: DRAM, NAND flash, and HBM.
DRAM price by generation The DRAM line above, broken out by generation across the full history — Pre-DDR (SDRAM/core), DDR, DDR2, DDR3, DDR4, DDR5. (Generation is inferred from product descriptions, so older points are approximate.)
Accelerator cost breakdown Modeled estimates from Epoch AI: quarterly accelerator cost across the four largest AI-accelerator designers — Nvidia, AMD, Google (TPU) and Amazon (Trainium) — stacked by component (HBM, logic die, packaging/CoWoS, auxiliary), a production-volume-weighted average. Absolute ($B/quarter) Share (%)
HBM price by generation By HBM generation (HBM2e → HBM3 → HBM3e → HBM4). HBM is sold only to accelerator makers on confidential contracts — there is no public spot market — so these are sparse industry-analyst estimates (TrendForce / SemiAnalysis), not transaction prices. HBM4 is projected (launches Q3 2026). $/TBps is cost per unit of memory bandwidth (stack price ÷ per-stack bandwidth). $/GB $/TBps
Methodology note. $/GB is the cheapest listed retail price in nominal USD — not contract, average, inflation-adjusted, or a confirmed sale price. DRAM history is the McCallum dataset (extended from mid-2024 by Keepa Amazon prices); NAND is Keepa's cheapest consumer-NVMe price from 2016 (approximate anchors before); HBM figures are modeled estimates. Sources are listed below and in the downloadable dataset; please check before citing.