DDR3 might be lurking out there, but DDR2 is still the most popular option for most people, and for good reason. It’s fast, and currently, very inexpensive. Although there are many PC2-6400 kits available, Kingston puts a twist on their’s by offering it with tight 3-3-3 timings.
Next on the list is Everest 3.5, with it’s read/write and latency tests. These benchmarks are heavily CPU bound as well though, so the higher your CPU frequency, the better effects your memory overclocks will have.
This is not a memory benchmark per se, but rather one that stresses a single core of your CPU to it’s full potential. Because it crunches such an insane amount of digits, tighter timings and faster memory generally offers better results. We choose to run with an 8 million test, as anything lower flies by too fast on a Core 2 Duo and it’s hard to generally see the differences that way.
Though it’s no longer in development, Sciencemark is a tool I still like to keep in my chest… err thumb drive. It gives results far more in-depth than other benchmarking programs out there, although you’d have to be an engineer to care for -all- the information it delivers. It generates a bandwidth result just like Everest and Sandra does, and is effected by higher CPU clocks.