We start with the cache speed, measured with the h2bench Core Test. Performances shouldn’t vary between 5400 and 7200 rpm versions here as what is being measured is the access to chip memory integrated in the PCB. Although the Samsung cache is slightly faster, the difference is small.
Also taken with the help of h2bench, access time shows that 5400 rpm drives are not as far behind as all that. The difference of 1.4 to 1.5 ms is to be expected given what we said above about the latency differences of 1.4 ms: the mechanism in terms of reading heads is the same. Whatever the rotation speed, note that the mechanism used by Western is slightly faster than Samsung. Activation of AAM has a much more significant impact with Western – we’ll see what impact it has on noise levels later.
h2bench allowed us to measure the read and write speeds of the drives during sequential access.
The difference between 7200 and 5400 rpm versions is obvious here, with an advantage of ¼ with Western and 1/3 with Samsung. In both reading and writing, the SpinPoint F1 is on average the faster of the two 7200 rpms, while the Western 5400 rpms are slightly ahead of the EcoGreens.
This graph shows speeds according to how far in on the drive you are on 1 TB drives. There isn’t a notable difference between the drives, speeds gradually falling off.