As a quick addition on this, the m3.medium -- running on the same processor but governed differently -- takes 160 seconds to run the same benchmark (after repea

As a quick addition on this, the m3.medium -- running on the same processor but governed differently -- takes 160 seconds to run the same benchmark (after repeated runs). Amazon used to promote their instances via the somewhat comparable ECU metrics. Now, however, unless I'm missing something, you need to try to determine by narrative, because 1 vCPU is very much not equal to 1 vCPU on other instance types.