Frequency is usually listed immediately after the DDR version-DDR4-3200 is DDR4 memory running at a frequency of 3200MHz. Speed in this instance refers specifically to frequency, the measure in MHz of how many commands your RAM can process per second, and not timings/latency (the four numbers that determine the delay in the RAMs internal functions, like accessing specific lines and columns of data).
Before we dive deep into benchmarks and conclusions, let me make a few things clear up front.
