Barclays' latest market assessment shows DDR4 prices have overtaken DDR5. In some supply channels, older memory now costs more than newer memory – a "price inversion" that few would have expected.

DDR4 contract prices rose 4% in October alone and 24% over three months. DDR5 rose about 20% over the same period. DDR5 has higher bandwidth, but plenty of desktops, servers, industrial equipment, and embedded systems still run DDR4. The two are not interchangeable. That means existing DDR4 machines cannot simply move to DDR5 – they need replacement parts or stockpiles, and that demand keeps building.

Contract terms are shifting

Suppliers have moved away from contracts with fixed price ranges. New agreements track market prices more closely. That pushes more volatility onto module makers and system integrators. Some manufacturers are cutting memory capacity or adjusting product specs to hold costs down. Barclays warns that if supply stays tight, this short-term fix could become the norm.

How long will it last?

The research points to another two years of imbalance. DRAM demand is projected to exceed supply by 13.9% in Q4 2027. NAND Flash is expected to hit its largest shortfall in Q1 2028, with demand outpacing supply by 8.3%.

The takeaway

Retail DIY pricing varies by region and channel inventory. But the direction is clear. For anyone keeping DDR4 systems running or planning future products, memory cost is going to be a hard problem to work around.