Intel IOMeter: Average Read & Write Response Time
The average read/write response time is measured in a 10-minute test to read/write 512-byte data blocks with a request queue of 1.
The first diagram shows the read response time. You can see two groups of drives here. Some drives have a very low response time and they have previously had the highest sequential read speeds. The drives from the second group have much worse results.
There are two groups, too, in the write response diagram. Some of the flash drives have almost the same and low write response time. These drives have also been among the leaders in the sequential write test.