On the other hand, latency of DRAM also depends on the physical location of data accessed (precharge, bank selection...). But for DRAM case it only depends on s

On the other hand, latency of DRAM also depends on the physical location of data accessed (precharge, bank selection...). But for DRAM case it only depends on sequence of previous operations and does not change with wall time, for direct-access media it changes with time.