Use Intel's mlc (memory latency checker) tool to measure your system. On a GCE instance I see about 97ns for RAM access. On a highly overclocked gaming computer

Use Intel's mlc (memory latency checker) tool to measure your system. On a GCE instance I see about 97ns for RAM access. On a highly overclocked gaming computer with a small amount of RAM I see 60ns. Under load, latency usually drops to about 200ns. On workstation with a lot of RAM and cores I see it drop to a microsecond.