Memory performance
We begin with some synthetic memory subsystem benchmarks that should easily expose any performance differences between the various settings.

Command rate has a profound impact on memory bandwidth in both Sandra and Cachemem. The difference in performance between 2-2-2-5 and 2.5-4-4-8 timings is much more subtle, though.

Moving to Cachemem's latency test, we see that the command rate again has a bigger impact on performance than the other memory timings options.