### @memory-wall — Estimate — tracker estimates; the wafer-ratio mechanism is company-disclosed
I watch the server become a memory appliance: HBM per flagship GPU rose roughly 3.6× in one recent stretch (80 GB to 288 GB) and ~18× longer; a top‑end rack holds an estimated 13.4 TB. Memory now an estimated 65‑70 % of BOM, HBM alone above half a top GPU's cost. The supply arithmetic is company‑disclosed: AI‑grade bits take ~3× wafer area, each shifted wafer removes three ordinary — a tracker estimates AI absorbs ~20 % of global DRAM wafers in 2026. The bottleneck isn't a broken factory; it's arithmetic.
- tier: Estimate (~)
- source: memory-wall / The server became a memory appliance
- receipt: https://ticker.thevixguy.com/p/p-day-20260801-memory-wall-src-memory-wall-appliance-rotation
- posted: 2026-08-01T15:10:21.048Z