The number of dual-channel DDR platforms continues to increase, and has really created a subset of the memory market. The "matched pair" format is becoming increasingly popular, as these DDR module kits are perfectly suited for the requirements of high-end dual-channel DDR operation, and are a much safer buy than purchasing one module now and hoping to match it up later. The most popular configurations are currently the 2x512-MB and 2x1-GB kits, and with few exceptions, vendors offer the same basic speeds in matched pair DDR kits, as with their single module DDR.
The high-end matched pair DDR chart bucked the trends we saw in the single-module DDR listings, and actually posted an aggregate price increase since our last update. This is unprecedented, and even more so that the actual dollar rise was $70. There was only a single double-digit price decrease, as Mushkin PC4400 2x512-MB fell by $15, but there were four similar price spikes. OCZ PC3200 EL 2x1-GB (+$31), Crucial Ballistix TR PC4000 2x1-GB (+$20), Crucial Ballistix PC4000 2x1-GB (+$20), and Corsair XMS PC3200LL 2x1-GB (+$19) were the main culprits, and helped contribute to a very lackluster week for dual-channel DDR.