DDR5 · double data rate 5 (SDRAM)
The current socketed commodity DRAM generation used for host memory; it competes with HBM for the same DRAM wafer supply, so HBM demand raises its price.
Current numbers
~4–5× → ~1–2×HBM3E price premium over server DDR5 per bit, narrowing by end-2026 (TrendForce)
~3:1 HBM3E-to-DDR5 supply trade ratioMicron HBM3E-to-DDR5 capacity-conversion trade ratio — the structural crowding-out driver
192 cores / 500 WAMD EPYC 9965 (Turin) host CPU, DDR5-6000/6400; Intel Xeon 6 up to 128 P-cores w/ MRDIMM-8800