The market this week said two opposite things at once, and both matter to anyone quoting or paying out on server memory: new DDR5 kept climbing while the DDR4 chip spot market corrected. A payout table or a quote that treats "memory" as one number was wrong on at least one side.
The two moves
Server DDR5 RDIMM rose again. Contract prices for 32GB/64GB/96GB DDR5 RDIMM rose a reported 15-23% inside the month (CFM/MemoryMarket, 2026-09), on top of a Q3 where analysts kept raising forecasts rather than cutting them. Original manufacturers are pushing list up; Samsung's October contract letter was reportedly delayed and then landed with increases up to 60% on some server skews. Translation for a buyer: every week you wait is priced into the next quote you receive.
DDR4 chips eased, DDR4 modules did not (yet). TrendForce's weekly spot note (2026-09-23) had branded DDR4 2Gx8 chip prices correcting 3.6% without attracting buyers - after that same chip had *risen* 1.78% the week before. Chip easing is a leading indicator, not a module price: modules lag chips, and retail module listings in our own sweep are still historically high.
What our own sweep says
Measured, dated, and re-swept roughly every two hours - not a report, a ledger:
- DDR4 32GB server kits: floor $4.53/GB across live listings, with the cheapest advertised
kit checked at product-page level. Two days ago the floor was $5.94/GB - the retail tail is already reacting to the chip correction.
- DDR5 32GB kits: the cheapest *advertised* is $10.94/GB, but the cheapest buyable one is
$13.44/GB ($429.99 a kit, verified in stock) - a $80-per-kit gap between the price you can see and the price you can order, on a 40-kit line that is $3,200.
- DDR5 64GB: the advertised floor is $9.69/GB and **none of its listings is verified in
stock** - a lane we would not build a quote on today, and we say so instead of quoting it.
- 135 live listings across two retailers, each with a dated history page under
The number that matters
The spread, not the level. On DDR5 32GB, the distance between the cheapest listing and the cheapest *buyable* listing is $80 a kit right now - that is where quotes go wrong this month. On DDR5 64GB the whole lane is unverified stock, which is a warning in itself. On DDR4, the chip correction has not fully reached modules yet - the desk that moves first on that lag buys inventory its competitors are still pricing off last month.
Sources, named
TrendForce spot-price updates (2026-09-09 and 2026-09-23), CFM/MemoryMarket server DDR5 note (September 2026), Goldman Sachs research summaries via HTX, and this site's own sweep ledger (`data/memory.csv`, every row dated). None of them is us; the numbers in our section are ours and carry links on every kit page. Prices move the hour after this is written; no forecast is made or implied, and no warranty is offered, express or implied.