RAM Price Index: September 2026
How DDR4 and DDR5 memory prices moved in September 2026, computed from the daily price per gigabyte RamRadar recorded across live retailer listings. 20 days of data.
DDR5 open → close
$16.28 → $17.35
mean $/GB, desktop
DDR5 monthly move
+6.6%
first vs last recorded day
DDR4 open → close
$8.01 → $7.35
mean $/GB, desktop
DDR4 monthly move
-8.2%
first vs last recorded day
September 2026 in review
Desktop DDR5 opened September 2026 at $16.28 per gigabyte on September 1, 2026 and closed at $17.35/GB on September 20, 2026: a +6.6% move across the month. DDR4 went from $8.01 to $7.35/GB over the same stretch (-8.2%).
Within the month, the DDR5 average peaked at $17.83/GB on September 11, 2026 and bottomed at $16.28/GB on September 1, 2026: a 9.5% gap between the best and worst day to buy.
On a monthly-average basis, DDR5 ran at $17.07/GB in September 2026, +11.9% versus August 2026's $15.25/GB. DDR4 averaged $7.73/GB, +0.6% month over month.
By month end, DDR4 was trading $10.00/GB below DDR5 (57.6% less per gigabyte).
This archive reflects 20 days of recorded data for September 2026. Daily points are the average price per gigabyte across every in-stock kit RamRadar tracked that day, so figures move with real listings rather than manufacturer list prices.
Figures computed from index rows recorded through September 20, 2026. The full series is downloadable from the RAM Price Index page.