Shopping for DDR3 for an AM3 system is a little different that for a Core i7 system, as AMD has opted to go with dual channel as opposed to triple channel.  Arguments about the exact cause of that decision still goes on; that is not the purpose of iXBT Labs review however.  They are looking at a mix of 1600MHz and 1800MHz dual channel kits paired with Phenom II X4 955BE on an ASUS M3A79-T Deluxe and an MSI 790FX-GD70Drop by for a look and maybe you can pick up a kit that won’t leave you with an unused DIMM.

“On the one hand, the answer is clear: if you want to save some money and not lose much (or any) performance, it will be reasonable to redistribute your budget and buy DDR2 memory, which is still cheaper. Also, the relatively old overclocker DDR3 memory kits for other platforms work well with Phenom II, and in most cases they even significantly exceed their recommended frequencies.”

Here are some more Memory articles from around the web:

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